|
|
This chapter documents voice port commands used to configure voice port settings on the Cisco 3600 series and the Cisco MC3810. Commands in this section are listed alphabetically. For information on how to configure voice ports, refer to the Voice, Video, and Home Applications Configuration Guide.
Table 13 lists the voice port commands and the platforms that each is supported on.
| Voice Port Command | Cisco 3600 Series | Cisco MC3810 |
|---|---|---|
auto-cut-through |
| X |
codec (voice-port configuration) |
| X |
comfort-noise | X |
|
compand-type |
| X |
condition |
| X |
connection | X | X |
cptone | X | X |
define |
| X |
description | X | X |
dial-type | X | X |
echo-cancel-coverage | X | X |
echo-cancel-enable | X | X |
ignore |
| X |
impedance | X | X |
input gain | X | X |
music-threshold | X |
|
non-linear | X | X |
operation | X | X |
output attenuation | X | X |
playout-delay |
| X |
ring cadence |
| X |
ring frequency | X | X |
ring number | X |
|
shutdown (voice-port configuration) | X | X |
signal | X | X |
snmp trap link-status | X | X |
supervisory disconnect | X |
|
timeouts initial | X | X |
timeouts interdigit | X | X |
timeouts wait-release |
| X |
timing | X | X |
type | X | X |
vad |
| X |
voice confirmation-tone |
| X |
voice-port | X | X |
Voice port commands for both the Cisco 3600 series and the Cisco MC3810 define the characteristics associated with a particular voice-port signaling type. Voice ports for both the Cisco 3600 series routers and the Cisco MC3810 provide support for three basic voice signaling formats:
Table 14 lists the Cisco 3600 series voice port commands and the signaling types supported. Table 15 lists the Cisco MC3810 voice port commands and signaling types supported. Because the Cisco MC3810 includes either analog voice ports (if the Analog Voice Module is installed), or digital voice ports (if the Digital Voice Module is installed), the table also lists whether the command is supported on analog voice ports, digital voice ports, or both.
| Voice Port Command | FXO | FXS | E&M |
|---|---|---|---|
comfort-noise |
|
|
|
connection |
|
|
|
cptone | X | X | X |
description | X | X | X |
dial-type | X |
| X |
echo-cancel coverage |
|
|
|
echo-cancel enable |
|
|
|
impedance | X | X | X |
input gain | X | X | X |
music-threshold |
|
|
|
non-linear |
|
|
|
operation |
|
| X |
output attenuation | X | X | X |
ring frequency |
| X |
|
ring number | X |
|
|
shutdown | X | X | X |
signal | X | X | X |
snmp trap link-status |
|
|
|
timeouts initial |
|
|
|
timeouts interdigit |
|
|
|
timing |
|
|
|
timing suboptions: |
|
|
|
clear-wait |
|
| X |
delay-duration |
|
| X |
delay-start |
|
| X |
delay-with-integrity |
|
| X |
digit | X | X | X |
inter-digit | X | X | X |
pulse | X |
| X |
pulse-inter-digit | X |
| X |
wink-duration |
|
| X |
wink-wait |
|
| X |
type |
|
| X |
voice-port | X | X | X |
| Voice Port Command | Type of Voice Port Supported On | FXO | FXS | E&M |
|---|---|---|---|---|
auto-cut-through | Analog and Digital |
|
| X |
codec | Analog and Digital | X | X | X |
comfort-noise | Analog and Digital | X | X | X |
compand-type | Digital only | X | X | X |
condition | Digital only | X | X | X |
connection | Analog and Digital | X | X | X |
cptone | Analog only | X | X | X |
define | Digital only |
|
| X |
description | Analog and Digital | X | X | X |
dial-type | Analog and Digital | X |
| X |
echo-cancel coverage | Analog and Digital | X | X | X |
echo-cancel enable | Analog and Digital | X | X | X |
forward-digits | Analog and Digital | X | X | X |
ignore | Digital only |
|
| X |
impedance | Analog only | X |
|
|
input gain | Analog and Digital | X | X | X |
non-linear | Analog and Digital | X | X | X |
operation | Analog only |
|
| X |
output attenuation | Analog and Digital | X | X | X |
playout-delay | Analog and Digital | X | X | X |
ring cadence | Analog only |
| X |
|
ring frequency | Analog only |
| X |
|
ring number | Analog and Digital | X |
|
|
shutdown | Analog and Digital | X | X | X |
signal | Analog only | X | X | X |
snmp trap link-status | Analog and Digital | X | X | X |
supervisory disconnect | Analog and Digital | X |
|
|
timeouts initial | Analog and Digital | X | X | X |
timeouts interdigit | Analog and Digital | X | X | X |
timeouts wait-release | Analog and Digital | X | X | X |
timing | Analog and Digital |
|
|
|
timing suboptions: |
|
|
|
|
clear-wait |
|
|
| X |
delay-duration |
|
|
| X |
delay-start |
|
|
| X |
dialout-delay |
|
|
| X |
digit |
| X | X | X |
inter-digit |
| X | X | X |
percentbreak |
| X |
| X |
pulse |
| X |
| X |
pulse-inter-digit |
| X |
| X |
wink-duration |
|
|
| X |
wink-wait |
|
|
| X |
type | Analog only |
|
| X |
vad | Analog and Digital | X | X | X |
voice confirmation-tone | Analog and Digital | X | X | X |
voice-port | Analog and Digital | X | X | X |
This command has no arguments or keywords.
Enabled
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
The auto-cut-through command applies to E&M voice ports only on the Cisco MC3810.
The following example enables the Cisco MC3810 to complete a call when a PBX does not provide an M-lead response:
voice-port 1/1 auto-cut-through
g729r8 | Specifies G729, 8k CSA-CELP compression. This is the default. |
g729ar8 | Specifies G729, 8k CSA-CELP Annex A compression. |
g726r32 | Specifies G.726 32K ADCPM compression. |
g711alaw | Specifies G.711 64K PCM A-Law compression. |
g711ulaw | Specifies G.711 64K PCM U-Law compression. |
The default is g729ar8 compression mode.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
The g729ar8 compression mode can support a maximum of 24 simultaneously active on-net voice calls on the Cisco MC3810 while the g729r8 compression mode can only support a maximum of 12. Both compression modes have a nominal data rate of 8 kbps.
This command applies to both analog and digital voice ports on the Cisco MC3810.
The following example configures voice port 1/1 on the Cisco MC3810 to support g729r8 compression:
voice-port 1/1 codec g729r8
You can use the master indexes or search online to find documentation of related commands.
This command has no arguments or keywords.
Enabled
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
Use the comfort-noise command to generate background noise to fill silent gaps during calls if VAD is activated. If comfort-noise is not enabled, and VAD is enabled at the remote end of the connection, the user will hear dead silence when the remote party is not speaking.
The configuration of comfort-noise only affects the silence generated at the local interface; it does not affect the use of VAD on either end of the connection or the silence generated at the remote end of the connection.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
The following example enables background noise on the Cisco 3600 series:
voice-port 1/0/0 comfort-noise
You can use the master indexes or search online to find documentation of related commands.
vad
u-law | Specifies the North American mu-law ITU-T PCM encoding standard. |
a-law | Specifies the European a-law ITU-T PCM encoding standard. |
u-law (T1 digital)
a-law (E1 digital)
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies only to the Cisco MC3810.
The following example configures a-law encoding on voice port 1/1 on the Cisco MC3810:
voice-port 1/1 compand-type a-law
You can use the master indexes or search online to find documentation of related commands.
tx-a-bit | Transmits A bit. |
tx-b-bit | Transmits B bit. |
tx-c-bit | Transmits C bit. |
tx-d-bit | Transmits D bit. |
rx-a-bit | Receives A bit. |
rx-b-bit | Receives B bit. |
rx-c-bit | Receives C bit. |
rx-d-bit | Receives D bit. |
on | Forces the bit state to be a 1. |
off | Forces the bit state to be a 0. |
invert | Inverts the state of the bits. |
No condition (for all transmit or receive A, B, C, and D bits)
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies to the Cisco MC3810 only.
Use the condition command to manipulate the bit patterns sent or received by the Cisco MC3810 to match expected patterns on a connected device. Be careful not to destroy the information content of the bit pattern. For example, forcing the A-bit on or off will prevent FXO interfaces from being able to generate both an on-hook and off-hook state.
The following example manipulates the signaling format bit-pattern on voice port 1/1 on the Cisco MC3810:
voice-port 1/1 ccondition tx-a-bit invert condition rx-a-bit invert
You can use the master indexes or search online to find documentation of related commands.
To specify a connection mode for a voice port, use the connection voice-port configuration command. Use the no form of this command to disable the selected connection mode.
connection {plar | tie-line | trunk | plar-opx} string
plar | Specifies a private line auto ring down (PLAR) connection. PLAR is handled by associating a peer directly with an interface; when an interface goes off-hook, the peer is used to set up the second call leg and conference them together without the caller having to dial any digits. |
tie-line | (This keyword is specific to the Cisco MC3810.) Specifies a tie-line connection to a private branch exchange (PBX). |
trunk | (This keyword is specific to the Cisco 3600.) Specifies a straight tie-line connection to a private branch exchange (PBX). |
plar-opx | (This keyword is specific to the Cisco MC3810) Specifies a PLAR Off-Premises eXtension connection. Using this option, the local voice-port provides a local response before the remote voice-port receives an answer. On FXO interfaces, the voice-port will not answer until the remote side answers. |
string | Specifies the destination telephone number. Valid entries are any series of digits that specify the E.164 telephone number. |
No connection mode is specified.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
Use the connection command to specify a connection mode for a specific interface. For example, use the connection plar command to specify a PLAR interface. The string you configure for this command is used as the called number for all calls coming in over this connection. The destination peer is determined by called number.
Use the connection trunk command on a Cisco 3600 series router to specify a straight tie-line connection (in other words, a virtual trunk connection) to a PBX. Voice over IP simulates a trunk connection by creating virtual trunk tie lines between PBXs connected to Cisco 2600 and 3600 series routers on each side of a VoIP connection. (See Figure 3.) In this example, two PBXs are connected using a virtual trunk. PBX-A is connected to Router A via an E&M voice port; PBX-B is connected to Router B via an E&M voice port. The Cisco routers spoof the connected PBXs into believing that a permanent trunk tie line exists between them.
To configure virtual trunk connections in Voice over IP, use the connection trunk command. The following conditions must be met for Voice over IP to support virtual trunk connections:
VoIP establishes the trunk connection immediately after it is configured. Both ports on either end of the connection are dedicated until you disable trunking for that connection. If for some reason the link between the two switching systems goes down, the virtual trunk re-establishes itself after the link comes back up.
If the connection command is not configured, the standard session application outputs a dial tone when the interface goes off-hook until enough digits are collected to match a dial-peer and complete the call.
The connection tie-line command is used on the Cisco MC3810 when a dial plan requires that additional digits are added in front of any digits dialed by the PBX, and that the combined set of digits are used to route the call via the dial-peers and into the network. The operation is similar to the connection plar command operation, but in this case the tie-line port also waits to collect digits from the PBX. The tie-line digits are also automatically stripped by a terminating port.
The following example selects PLAR as the connection mode on the Cisco 3600 series, with a destination telephone number of 555-9262:
voice-port 1/0/0 connection plar 5559262
The following example selects tie-line as the connection mode on the Cisco MC3810, with a destination telephone number of 555-9262:
voice-port 1/1 connection tie-line 5559262
The following example configures the routers on both sides of a Voice over IP connection (as illustrated in Figure 3) to support trunk connections:
Router A:
configure terminal voice-port 1/0/0 connection trunk +15105554000 dial-peer voice 10 pots destination-pattern +13085551001 port 1/0/0 dial-peer voice 100 voip session-target ipv4:172.20.10.10 destination-pattern +15105554000
Router B:
configure terminal voice-port 1/0/0 connection trunk +13085551000 dial-peer voice 20 pots destination-pattern +15105554001 port 1/0/0 dial-peer voice 200 voip session-target ipv4:172.19.10.10 destination-pattern +13085551000
You can use the master indexes or search online to find documentation of related commands.
session-protocol
locale | Keyword specifying an analog voice interface-related, default tone, ring, and cadence settings for a specified country. Valid entries for the Cisco MC3810 are: argentina, australia, austria, belgium, brazil, china, colombia, czechrepublic, denmark, finland, france, germany, greece, hongkong, iceland, israel, italy, japan, korea, luxembourg, malaysia, netherlands, newzealand, northamerica, norway, peru, philippines, poland, portugal, russia, singapore, slovakia, southafrica, spain, sweden, switzerland, taiwan, thailand, turkey, unitedkingdom, and venezuela. The Cisco 3600 series complies with the ISO 3166 country name standards, which use a two-letter code to represent a country. Valid entries for the Cisco 3600 series are listed in Table 16. |
| Cptone Command Entry | Country |
|---|---|
ar | Argentina |
au | Australia |
at | Austria |
be | Belgium |
br | Brazil |
ca | Canada |
cn | China |
co | Colombia |
cz | Czech Republic |
dk | Denmark |
fi | Finland |
fr | France |
de | Germany |
gr | Greece |
hk | Hong Kong |
hu | Hungary |
is | Iceland |
in | India |
id | Indonesia |
ie | Ireland |
il | Israel |
it | Italy |
jp | Japan |
kr | Korea Republic |
lu | Luxembourg |
my | Malaysia |
mx | Mexico |
nl | Netherlands |
nz | New Zealand |
no | Norway |
pe | Peru |
ph | Philippines |
pl | Poland |
pt | Portugal |
ru | Russian Federation |
sg | Singapore |
sk | Slovakia |
si | Slovenia |
za | South Africa |
es | Spain |
se | Sweden |
ch | Switzerland |
tw | Taiwan |
th | Thailand |
tr | Turkey |
gb | Great Britain |
us | Unites States |
ve | Venezuela |
northamerica for the Cisco MC3810
us for the Cisco 3600 series
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
The cptone command only affects the tones generated at the local interface. It does not affect any information passed to the remote end of a connection, or any tones generated at the remote end of a connection.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
The following example configures United States as the call progress tone locale on the Cisco 3600 series:
voice-port 1/0/0 cptone us
The following example configures Singapore as the call progress tone locale on the Cisco MC3810:
voice-port 1/1 cptone singapore
Tx-bits | Transmit signaling bits. |
Rx-bits | Receive signaling bits. |
seize | Define the pattern that represents the seized state. |
idle | Define the pattern that represents the idle state. |
0000 through 1111 | Define the appropriate bit pattern. |
The default is to use the preset signaling patterns as defined in ANSI and CEPT standards, as follows:
For E&M:
Tx-bits idle 0000 (0001 if on E1 trunk)
Tx-bits seize 1111
Rx-bits idle 0000
Rx-bits seize 1111
For E&M Melcas:
Tx-bits idle 1101
Tx-bits seize 0101
Rx-bits idle 1101
Rx-bits seize 0101
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies to digital voice ports on the Cisco MC3810 only.
Use the define command to match the E&M bit patterns with the attached telephony device. Be careful not to define invalid configurations, such as all 0000 on E1, or identical seize and idle states. Use this command with the ignore command.
To configure a voice-port sending traffic in North American E&M signaling format to convert the signaling to Mercury Exchange Limited (MEL) CAS format, enter the following commands:
voice-port 1/1 define rx-bits idle 1101 define rx-bits idle 0101 define tx-bits seize 1101 define tx-bits seize 0101
You can use the master indexes or search online to find documentation of related commands.
condition
ignore
string | Character string from 1 to 255 characters. |
Enabled with a null string
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
Use the description command to include descriptive text about this voice-port connection. This information is displayed when you issue a show command and does not affect the operation of the interface in any way.
The following example identifies voice port 1/0/0 on the Cisco 3600 series as being connected to the Purchasing department:
voice-port 1/0/0 description purchasing_dept
The following example identifies voice port 1/1 on the Cisco MC3810 as being connected to the Marketing department:
voice-port 1/1 description marketing_dept
dtmf | Specifies a touch-tone dialer. |
pulse | Specifies a pulse dialer. |
dtmf
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
Use the dial-type command to specify an out-dialing type for an FXO or E&M voice port interface; this command is not applicable to FXS voice ports because they do not generate out-dialing. Voice ports can always detect dtmf and pulse signals. This command does not affect voice port dialing detection.
The dial-type command affects out-dialing as configured for the dial peer.
The following example configures a voice port on the Cisco 3600 series to support a touch-tone dialer:
voice-port 1/0/0 dial-type dtmf
The following example configures a voice port on the Cisco MC3810 to support a rotary (pulse tone) dialer:
voice-port 1/1 dial-type pulse
value | Number of milliseconds the echo-canceller will cover on a given signal. Valid values are 16, 24, and 32. |
16
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
Use the echo-cancel coverage command to adjust the coverage size of the echo canceller. This command enables cancellation of voice that is sent out the interface and received back on the same interface within the configured amount of time. If the local loop (the distance from the analog interface to the connected equipment producing the echo) is longer, the configured value of this command should be extended.
If you configure a longer value for this command, it will take the echo canceller longer to converge; in this case, the user might hear slight echo when the connection is initially set up. If the configured value for this command is too short, the user might hear some echo for the duration of the call because the echo canceller is not cancelling the longer delay echoes.
There is no echo or echo cancellation on the network (for example, non-POTS) side of the connection.
The following example adjusts the size of the echo canceller to 16 milliseconds on the Cisco 3600 series:
voice-port 1/0/0 echo-cancel enable echo-cancel coverage 16
The following example adjusts the size of the echo canceller to 16 milliseconds on the Cisco MC3810:
voice-port 1/1 echo-cancel enable echo-cancel coverage 16
You can use the master indexes or search online to find documentation of related commands.
echo-cancel enable
This command has no arguments or keywords.
Enabled for all interface types.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
The echo-cancel enable command enables cancellation of voice that is sent out the interface and is received back on the same interface; sound that is received back in this manner is perceived by the listener as an echo. Disabling echo cancellation might cause the remote side of a connection to hear an echo. Because echo cancellation is an invasive process that can minimally degrade voice quality, this command should be disabled if it is not needed.
The echo-cancel enable command does not affect the echo heard by the user on the analog side of the connection.
There is no echo path for a 4-wire E&M interface. The echo canceller should be disabled for that interface type.
The following example enables the echo cancellation feature and adjusts the size of the echo canceller to 16 milliseconds on the Cisco 3600 series:
voice-port 1/0/0 echo-cancel enable echo-cancel coverage 16
The following example enables the echo cancellation feature and adjusts the size of the echo canceller to 16 milliseconds on the Cisco MC3810:
voice-port 1/1 echo-cancel enable echo-cancel coverage 16
You can use the master indexes or search online to find documentation of related commands.
echo-cancel coverage
non-linear
rx-a-bit | Ignores the receive A bit. |
rx-b-bit | Ignores the receive B bit. |
rx-c-bit | Ignores the receive C bit. |
rx-d-bit | Ignores the receive D bit. |
The default is mode-dependent:
E&M:
no ignore rx-a-bit
ignore rx-b-bit, rx-c-bit, rx-d-bit
E&M Melcas:
no ignore rx-b-bit, rx-c-bit, rx-d-bit
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies only to digital voice ports on the Cisco MC3810.
Use this command with the define command.
To configure voice-port 1/1 to ignore receive bits b, c, and d, enter the following commands:
voice-port 1/1 ignore rx-b-bit ignore rx-c-bit ignore rx-d-bit
You can use the master indexes or search online to find documentation of related commands.
condition
define
600c | Specifies 600 ohms complex. |
600r | Specifies 600 ohms real. |
900c | Specifies 900 ohms complex. |
complex1 | Specifies Complex 1. |
complex2 | Specifies Complex 2. |
600r
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
Use the impedance command to specify the terminating impedance of an FXO voice-port interface. The impedance value selected needs to match the specifications from the specific telephony system to which it is connected. Different countries often have different standards for impedance. CO switches in the United States are predominantly 600r. PBXs in the United States are normally either 600r or 900c.
If the impedance is set incorrectly (if there is an impedance mismatch), there will be a significant amount of echo generated (which could be masked if the echo-cancel command has been enabled). In addition, gains might not work correctly if there is an impedance mismatch.
Configuring the impedance on a voice port will change the impedance on both voice ports of a VPM card. This voice port must be shut down and then opened for the new value to take effect.
This command is applicable to FXS, FXO, and E&M voice ports on both the Cisco 3600 series and the Cisco MC3810.
The following example configures an FXO voice port on the Cisco 3600 series for a terminating impedance of 600 ohms (real):
voice-port 1/0/0 impedance 600r
The following example configures an E&M voice port on the Cisco MC3810 for a terminating impedance of 900 ohms (complex):
voice-port 1/1 impedance 900c
value | Specifies, in decibels, the amount of gain to be inserted at the receiver side of the interface. Acceptable value is any integer from -6 to 14. |
0
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
A system-wide loss plan must be implemented using both input gain and output attenuation commands. Other equipment (including PBXs) in the system must be taken into account when creating a loss plan. This default value for this command assumes that a standard transmission loss plan is in effect, meaning that normally, there must be -6dB attenuation between phones. Connections are implemented to provide -6dB of attenuation when the input gain and output attenuation commands are configured with the default value of 0.
You can't increase the gain of a signal going out into the PSTN, but you can decrease it. Therefore, if the voice level is too high, you can decrease the volume by either decreasing the input gain value or by increasing the output attenuation.
You can increase the gain of a signal coming in to the router. If the voice level is too low, you can increase the input gain.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
The following example configures a 3-decibel gain to be inserted at the receiver side of the interface in the Cisco 3600 series:
port 1/0/0 input gain 3
The following example configures a 3-decibel gain to be inserted at the receiver side of the interface in the Cisco MC3810:
port 1/1 input gain 3
You can use the master indexes or search online to find documentation of related commands.
output attenuation
number | The on-hold music threshold in decibels. Valid entries are any integer from -70 to -30. |
-38
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to the Cisco 3600 series only.
Use the music-threshold command to specify the decibel level of music played when calls are put on hold. This command tells the firmware to pass steady data above the specified level. It only affects the operation of VAD when receiving voice.
If the value for this command is set too high, VAD interprets music-on-hold as silence, and the remote end does not hear the music. If the value for this command is set too low, VAD compresses and passes silence when the background is noisy, creating unnecessary voice traffic.
The following example sets the decibel threshold for the music played when calls are put on hold to -35 on the Cisco 3600 series:
voice-port 1/0/0 music-threshold -35
This command has no arguments or keywords.
The default for this command is enabled for all voice-port types.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
The function enabled by the non-linear command is also generally known as residual echo suppression. This command is associated with the echo canceller operation. The echo-cancel enable command must be enabled for the non-linear command to take effect. Use the non-linear command to shut off any signal if no near-end speech is detected.
Enabling the non-linear command normally improves performance, although some users might perceive truncation of consonants at the end of sentences when this command is enabled.
The following example enables non-linear call processing on the Cisco 3600 series:
voice-port 1/0/0 non-linear
The following example enables non-linear call processing on the Cisco MC3810:
voice-port 1/1 non-linear
You can use the master indexes or search online to find documentation of related commands.
echo-cancel enable
2-wire | Specifies a 2-wire E&M cabling scheme. |
4-wire | Specifies a 4-wire E&M cabling scheme. |
2-wire operation
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
The operation command only affects voice traffic. Signaling is independent of 2-wire versus 4-wire settings. If the wrong cable scheme is specified, the user might get voice traffic in only one direction.
Configuring the operation command on a voice port changes the operation of both voice ports on a VPM card. The voice port must be shut down and then opened again for the new value to take effect.
This command is not applicable to FXS or FXO interfaces because they are, by definition, 2-wire interfaces.
On the Cisco MC3810, this command only applies to the analog voice module (AVM).
The following example specifies that an E&M port on the Cisco 3600 series uses a 4-wire cabling scheme:
voice-port 1/0/0 operation 4-wire
The following example specifies that an E&M port on the Cisco MC3810 uses a 2-wire cabling scheme:
voice-port 1/1 operation 2-wire
value | The amount of attenuation in decibels at the transmit side of the interface. Acceptable value is any integer from 0 to 14. The default value for FXO, FXS, and E&M ports is 0. |
0
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
A system-wide loss plan must be implemented using both input gain and output attenuation commands. Other equipment (including PBXs) in the system must be taken into account when creating a loss plan. This default value for this command assumes that a standard transmission loss plan is in effect, meaning that normally, there must be -6 dB attenuation between phones. Connections are implemented to provide -6 dB of attenuation when the input gain and output attenuation commands are configured with the default value of 0.
You can't increase the gain of a signal going out into the PSTN, but you can decrease it. Therefore, if the voice level is too high, you can decrease the volume by either decreasing the input gain value or by increasing the output attenuation.
The following example on the Cisco 3600 series configures a 3-decibel gain to be inserted at the transmit side of the interface:
voice-port 1/0/0 output attenuation 3
The following example on the Cisco MC3810 configures a 6-decibel gain to be inserted at the transmit side of the interface:
voice-port 1/1 output attenuation 6
You can use the master indexes or search online to find documentation of related commands.
input gain
maximum | Specifies the maximum playout delay. The maximum delay is the time the Cisco MC3810 DSP starts to discard voice packets. |
nominal | Specifies the nominal playout delay. The nominal delay is the wait time that the Cisco MC3810 DSP starts to play out the voice packets. |
value | The playout-delay value in milliseconds. The range for maximum playout delay is from 40 to 320, and the range for nominal playout delay is from 40 to 240. |
160 (maximum playout delay)
80 (nominal playout delay)
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies only to the Cisco MC3810.
The following example configures a nominal playout delay of 80 milliseconds and a maximum playout delay of 160 milliseconds on voice-port 1/1 on the Cisco MC3810:
voice-port 1/1 playout-delay nominal 80 playout-delay maximum 160
on1 | Pulses on for 100 milliseconds. |
off1 | Pulses off for 100 milliseconds. |
on2 | Pulses on for 200 milliseconds. |
off2 | Pulses off for 200 milliseconds. |
on3 | Pulses on for 300 milliseconds. |
off3 | Pulses off for 300 milliseconds. |
on4 | Pulses on for 400 milliseconds. |
off4 | Pulses off for 400 milliseconds. |
on5 | Pulses on for 500 milliseconds. |
off5 | Pulses off for 500 milliseconds. |
on6 | Pulses on for 600 milliseconds. |
off6 | Pulses off for 600 milliseconds. |
on2 off4 (default North American ring pattern)
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies only to the Cisco MC3810.
The following example configures the ring cadence for 0.4 seconds on and 0.2 seconds off on voice port 1/1 on the Cisco MC3810, enter the following:
voice-port 1/1
ring cadence on4 off2
You can use the master indexes or search online to find documentation of related commands.
number | Ring frequency (Hertz) used in the FXS interface. Valid entries on the Cisco 3600 series are 25 and 50. Valid entries on the Cisco MC3810 are 20 and 30. |
25 Hz on the Cisco 3600 series and 20 Hz on the Cisco MC3810
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command is applicable to both the Cisco 3600 series and the Cisco MC3810.
Use the ring frequency command to select a specific ring frequency for an FXS voice port. Use the no form of this command to reset the default value for this command. The ring frequency you select must match the connected equipment. If set incorrectly, the attached phone might not ring or might buzz. In addition, the ring frequency is usually country-dependent and you should take into account the appropriate ring frequency for your area before configuring this command.
This command does not affect ringback, which is the ringing a user hears when placing a remote call.
The following example configures the ring frequency on the Cisco 3600 series for 25 Hz:
voice-port 1/0/0 ring frequency 25
The following example configures the ring frequency on the Cisco MC3810 for 20 Hz:
voice-port 1/1 ring frequency 20
You can use the master indexes or search online to find documentation of related commands.
ring cadence
ring number
number | Number of rings detected before answering the call. Valid entries are numbers from 1 to 10. The default is 1. |
One ring
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
Use the ring number command to set the maximum number of rings to be detected before answering a call over an FXO voice port. Use the no form of this command to reset the default value, which is one ring.
Normally, this command should be set to the default so that incoming calls are answered quickly. If you have other equipment available on the line to answer incoming calls, you might want to set the value higher to give the equipment sufficient time to respond. In that case, the FXO interface would answer if the equipment on line did not answer the incoming call in the configured number of rings.
This command is not applicable to FXS or E&M interfaces because they do not receive ringing to receive a call.
The following example on the Cisco 3600 series sets five rings as the maximum number of rings to be detected before closing a connection over this voice port:
voice-port 1/0/0 ring number 5
The following example on the Cisco MC3810 sets five rings as the maximum number of rings to be detected before closing a connection over this voice port:
voice-port 1/1 ring number 5
You can use the master indexes or search online to find documentation of related commands.
ring frequency
This command has no arguments or keywords.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
When you enter the shutdown command, all ports on the voice interface card are disabled. When you enter the no shutdown command, all ports on the voice interface card are enabled. A telephone connected to an interface will hear dead silence when a port is shut down.
The following example takes voice port 1/1/0 on the Cisco 3600 series offline:
configure terminal voice-port 1/1/0 shutdown
For FXO and FXS:
signal {loop-start | ground-start}For E&M:
signal {wink-start | immediate | delay-dial}
loop-start | Specifies loop start signaling. Used for FXO and FXS interfaces. With loop start signaling only one side of a connection can hang up. This is the default setting for FXO and FXS voice ports. |
ground-start | Specifies ground start signaling. Used for FXO and FXS interfaces. Ground Start allows both sides of a connection to place a call and to hang up. |
wink-start | Indicates that the calling side seizes the line by going off-hook on its E-lead then waits for a short off-hook "wink" indication on its M lead from the called side before sending address information as DTMF digits. Used for E&M tie trunk interfaces. This is the default setting for E&M voice ports. |
immediate | Indicates that the calling side seizes the line by going off-hook on its E-lead and sends address information as DTMF digits. Used for E&M tie trunk interfaces. |
delay-dial | Indicates that the calling side seizes the line by going off-hook on its E-lead. After a timing interval, the calling side looks at the supervision from the called side. If the supervision is on-hook, the calling side starts sending information as DTMF digits; otherwise, the calling side waits until the called side goes on-hook and then starts sending address information. Used for E&M tie trunk interfaces. |
loop-start for FXO and FXS interfaces; wink-start for E&M interfaces
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
On Cisco 3600 series routers, configuring the signal command for an FXS or FXO voice port changes the signal value for both voice ports on a VPM card.
Configuring this command for an E&M voice port changes only the signal value for the selected voice port. In either case, the voice port must be shut down and then activated before the configured values will take effect.
Some PBXs will miss initial digits if the E&M voice port is configured for Immediate signaling. If this occurs, use Delay-Dial signaling instead. Some non-Cisco devices have a limited number of DTMF receivers. This type of equipment must delay the calling side until a DTMF receiver is available.
The following example configures ground start signaling on the Cisco 3600 series, which means that both sides of a connection can place a call and hang up, as the signaling type for a voice port:
configure terminal voice-port 1/1/1 signal ground-start
This command has no arguments or keywords.
The default for this command is enabled.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
Use the snmp trap link-status command to enable SNMP trap messages (linkup and linkdown) to be generated whenever this voice port is brought online or offline.
If you are managing the equipment with an SNMP manager, this command should be enabled. Enabling link-status messages allows the SNMP manager to learn of a status change without polling the equipment. If you are not using an SNMP manager, this command should be disabled to avoid unnecessary network traffic.
The following example enables SNMP trap messages for voice port 2/1/0 on the Cisco 3600 series:
voice-port 2/1/0 snmp trap link-stat
You can use the master indexes or search online to find documentation of related commands.
smnp enable peer-trap poor-qov
snmp-server enable trap poor-qov
This command has no arguments or keywords.
Enabled
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
This command indicates whether or not supervisory disconnect signaling is available on the FXO port. Supervisory disconnect signaling is a power denial from the switch lasting at least 350 milliseconds. When this condition is detected, the system interprets this as a disconnect indication from the switch and clears the call.
You should configure no supervisory disconnect on the voice port if there is no supervisory disconnect available from the switch.
The following example configures supervisory disconnect on a Cisco 3600 series voice port:
voice-port 2/1/0 supervisory disconnect
The following example configures supervisory disconnect on a Cisco MC3810 voice-port:
voice-port 1/1 supervisory disconnect
seconds | Initial timeout duration in seconds. Valid entries are any integer from 0 to 120. |
10 seconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
Use the timeouts initial command to specify the number of seconds the system will wait for the caller to input the first digit of the dialed digits. The timeouts initial timer is activated when the call is accepted and is deactivated when the caller inputs the first digit. If the configured timeout value is exceeded, the caller is notified through the appropriate tone and the call is terminated.
To disable the timeouts initial timer, set the seconds value to 0.
The following example sets the initial digit timeout value on the Cisco 3600 series to 10 seconds:
voice-port 1/0/0 timeouts initial 10
The following example sets the initial digit timeout value on the Cisco MC3810 to 10 seconds:
voice-port 1/1 timeouts initial 10
You can use the master indexes or search online to find documentation of related commands.
timeouts interdigit
timing
seconds | Interdigit timeout duration in seconds. Valid entries are any integer from 0 to 120. |
10 seconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
Use the timeouts interdigit command to specify the number of seconds the system will wait (after the caller has input the initial digit) for the caller to input a subsequent digit of the dialed digits. The timeouts interdigit timer is activated when the caller inputs a digit and restarted each time the caller inputs another digit until the destination address is identified. If the configured timeout value is exceeded before the destination address is identified, the caller is notified through the appropriate tone and the call is terminated.
To disable the timeouts interdigit timer, set the seconds value to 0.
The following example sets the interdigit timeout value on the Cisco 3600 series for 10 seconds:
voice-port 1/0/0 timeouts interdigit 10
The following example sets the interdigit timeout value on the Cisco MC3810 for 10 seconds:
voice-port 1/1 timeouts interdigit 10
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timing
value | The duration in seconds that a voice port stays in the call-failure state while the Cisco MC3810 sends a busy tone, reorder tone, or an out-of-service tone to the port. The range is from 5 to 3600 seconds. The default is 30 seconds. |
infinity | Indicates that the voice port is never released from call-failure state. |
30 seconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)MA.
This command applies only to the Cisco MC3810.
The following example configures voice port 1/1 on the Cisco MC3810 to stay in the call-failure state for 180 seconds while a busy tone, reorder tone, or out-of-service tone is sent to the voice port.
voice-port 1/1 timeouts wait-release 180
milliseconds | Minimum amount of time, in milliseconds, between the inactive seizure signal and the call being cleared. Valid entries on the Cisco 3600 series are numbers from 200 to 2000. Valid entries on the Cisco MC3810 are numbers from 100 to 2000. Supported on E&M ports only. |
400 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The following example configures the clear-wait duration on a Cisco 3600 series voice port to 300 milliseconds:
voice-port 1/0/0 timing clear-wait 300
The following example configures the clear-wait duration on a CiscoMC3810 voice port to 300 milliseconds:
voice-port 1/1 timing clear-wait 300
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | Delay signal duration for delay dial signaling, in milliseconds. Valid entries are numbers from 100 to 5000. Supported on E&M ports only. |
2000 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call direction for the timing delay-duration command is out.
The following example configures the delay signal duration on a Cisco 3600 series voice port to 3000 milliseconds:
voice-port 1/0/0 timing delay-duration 3000
The following example configures the delay signal duration on a Cisco MC3810 voice port to 3000 milliseconds:
voice-port 1/1 timing delay-duration 3000
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | Minimum delay time, in milliseconds, from outgoing seizure to outdial address. Valid entries are numbers from 20 to 2000. Supported on E&M ports only. |
On Cisco 3600 series, the default value is 300.
On the Cisco MC3810, the default value is 150.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call direction for the timing delay-start command is out.
The following example configures the delay-start duration on a Cisco 3600 series voice port to 250 milliseconds:
voice-port 1/0/0 timing delay-start 250
The following example configures the delay-start duration on a Cisco MC3810 voice port to 250 milliseconds:
voice-port 1/1 timing delay-start 250
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | Duration of the wink pulse for the delay dial, in milliseconds. Valid entries are numbers from 0 to 5000. Supported on E&M ports only. |
0
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to only the Cisco MC3810.
The following example configures the duration of the wink pulse for the delay dial on a Cisco MC3810 voice port to 10 milliseconds:
voice-port 1/1 timing delay-with-integrity 10
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | Time, in milliseconds, between the generation of wink-like pulses. Valid entries are numbers from 0 to 5000. |
300 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to only the Cisco 3600 series.
Use the timing command with the dial-pulse min-delay keyword with PBXs requiring a wink-like pulse, even though they have been configured for delay-dial signaling. If the value for this keyword is set to 0, the router will not generate this wink-like pulse. The call signal direction for this command is in.
The following example configures the time between the generation of wink-like pulses on a Cisco 3600 series voice port to 350 milliseconds:
voice-port 1/0/0 timing dial-pulse min-delay 350
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | Dialout delay, in milliseconds, for the sending digit or cut-through on an FXO trunk or an E&M immediate trunk. Valid entries are from 100 to 5000 milliseconds. |
300 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to only the Cisco MC3810.
The following example configures the dialout delay on a Cisco MC3810 voice port to 350 milliseconds:
voice-port 1/1 timing dialout-delay 350
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | The DTMF digit signal duration, in milliseconds. Valid entries are numbers from 50 to 100. Supported on FXO, FXS and E&M ports. |
100 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call signal direction for the timing digit command is out.
The following example configures the DTMF digit signal duration on a Cisco 3600 series voice port to 50 milliseconds:
voice-port 1/0/0 timing digit 50
The following example configures the DTMF digit signal duration on a Cisco MC3810 voice port to 50 milliseconds:
voice-port 1/1 timing digit 50
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | DTMF inter-digit duration, in milliseconds. Valid entries are numbers from 50 to 500. Supported on FXO, FXS and E&M ports. |
100 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call signal direction for the timing interdigit command is out.
The following example configures the DTMF inter-digit duration on a Cisco 3600 series voice port to 150 milliseconds:
voice-port 1/0/0 timing interdigit 150
The following example configures the DTMF inter-digit duration on a Cisco MC3810 voice port to 150 milliseconds:
voice-port 1/1 timing interdigit 150
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
percent | Percentage of the break period for a dialing pulse. Valid entries are numbers from 20 to 80. Supported on FXO and E&M ports only. |
50
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to only the Cisco MC3810.
The following example configures the break period percentage on a Cisco MC3810 voice port to 30 milliseconds:
voice-port 1/1 timing percentbreak 30
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing pulse
timing pulse-interdigit
timing wink-duration
timing wink-wait
pulses-per-second | Pulse dialing rate, in pulses per second. Valid entries are numbers from 10 to 20. Supported on FXO and E&M ports only. |
20
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call signal direction for the timing pulse command is out.
The following example configures the pulse dialing rate on a Cisco 3600 series voice port to 15 pulses per second:
voice-port 1/0/0 timing pulse 15
The following example configures the pulse dialing rate on a Cisco MC3810 voice port to 15 pulses per second:
voice-port 1/1 timing pulse 15
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse-interdigit
timing wink-duration
timing wink-wait
milliseconds | Pulse dialing inter-digit timing, in milliseconds. Valid entries are numbers from 100 to 1000. Supported on FXO and E&M ports only. |
500 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call signal direction for the timing pulse-interdigit command is out.
The following example configures the pulse-dialing inter-digit timing on a Cisco 3600 series voice port to 300 milliseconds:
voice-port 1/0/0 timing pulse-interdigit 300
The following example configures the pulse-dialing inter-digit timing on a Cisco MC3810 voice port to 300 milliseconds:
voice-port 1/1 timing pulse-interdigit 300
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing wink-duration
timing wink-wait
milliseconds | Maximum wink signal duration, in milliseconds, for a wink-start signal. Valid entries are numbers from 100 to 400. Supported on E&M ports only. |
200 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call signal direction for the timing wink-duration command is out.
The following example configures the wink signal duration on a Cisco 3600 series voice port to 300 milliseconds:
voice-port 1/0/0 timing wink-duration 300
The following example configures the wink signal duration on a Cisco MC3810 voice port to 300 milliseconds:
voice-port 1/1 timing wink-duration 300
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-wait
milliseconds | Maximum wink-wait duration, in milliseconds, for a wink start signal. Valid entries are numbers from 100 to 5000. Supported on E&M ports only |
200 milliseconds
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
The call signal direction for the timing wink-wait command is out.
The following example configures the wink-wait duration on a Cisco 3600 series voice port to 300 milliseconds:
voice-port 1/0/0 timing wink-wait 300
The following example configures the wink-wait duration on a Cisco MC3810 voice port to 300 milliseconds:
voice-port 1/1 timing wink-wait 300
You can use the master indexes or search online to find documentation of related commands.
timeouts initial
timeouts interdigit
timeouts wait-release
timing clear-wait
timing delay-duration
timing delay-start
timing delay-with-integrity
timing dialout-delay
timing dial-pulse min-delay
timing digit
timing interdigit
timing percentage
timing pulse
timing pulse-interdigit
timing wink-duration
To specify the E&M interface type, use the type voice-port configuration command. Use the no form of this command to reset the default value.
type {1 | 2 | 3 | 5}
1 | Indicates the following lead configuration: |
2 | Indicates the following lead configuration: |
3 | Indicates the following lead configuration: |
5 | Indicates the following lead configuration: |
1
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco 3600 series and the Cisco MC3810.
Use the type command to specify the E&M interface for a particular voice port. With 1, the tie-line equipment generates the E-signal to the PBX type grounding the E-lead. The tie-line equipment detects the M-signal by detecting current flow to ground. If you select 1, a common ground must exist between the line equipment and the PBX.
With 2, the interface requires no common ground between the equipment, thereby avoiding ground loop noise problems. The E-signal is generated toward the PBX by connecting it to SG. The M-signal is indicated by the PBX connecting it to SB. While Type 2 interfaces do not require a common ground, they do have the tendency to inject noise into the audio paths because they are asymmetrical with respect to the current flow between devices.
With 3, the interface operates the same as Type 1 interfaces with respect to the E-signal. The M-signal, however, is indicated by the PBX connecting it to SB on assertion and alternately connecting it to SG during inactivity. If you select 3, a common ground must be shared between equipment.
With 5, the Type 5 line equipment indicates E-signal to the PBX by grounding the E-lead. The PBX indicates M-signal by grounding the M-lead. A Type 5 interface is quasi-symmetrical in that while the line is up, current flow is more or less equal between the PBX and the line equipment, but noise injection is a problem.
The following example selects Type 3 as the interface type for your voice port on the Cisco 3600 series:
voice-port 1/0/0 type 3
The following example selects Type 3 as the interface type for your voice port on the Cisco MC3810:
voice-port 1/1 type 3
This command has no arguments or keywords.
VAD is not enabled
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to Voice over Frame Relay, Voice over ATM, and Voice over HDLC on the Cisco MC3810.
Use the vad command to enable voice activity detection. With VAD, silence is not transmitted over the network, only audible speech. If you enable VAD, the sound quality will be slightly degraded but the connection will monopolize much less bandwidth. If you use the no form of this command, VAD is disabled on the voice-port.
The following example enables VAD:
voice-port 1/1 vad
You can use the master indexes or search online to find documentation of related commands.
comfort-noise
This command has no arguments or keywords.
The two-beep confirmation tone is heard on the PLAR or PLAR OPX connection.
Voice-port configuration
This command first appeared in Cisco IOS Release 11.3 MA.
This command applies only to the Cisco MC3810.
Use this command to disable the two-beep confirmation tone that a caller hears when picking up the handset for PLAR and PLAR OPX connections. This command is only valid if the voice port connection command is set to PLAR or PLAR OPX.
The following example disables the two-beep confirmation tone on voice port 1/1 on the Cisco MC3810:
voice-port 1/1 connection plar-opx voice confirmation-tone
You can use the master indexes or search online to find documentation of related commands.
To enter the voice-port configuration mode, use the voice-port global configuration command.
For the Cisco 3600 series:
voice-port slot-number/subunit-number/portFor the Cisco MC3810:
voice-port slot/portFor the Cisco 3600 series:
slot-number | Specifies the slot number in the Cisco router where the voice network module is installed. Valid entries are from 0 to 3, depending on the voice interface card you have installed. |
subunit-number | Specifies the subunit on the voice network module where the voice port is located. valid entries are 0 or 1. |
port | Specifies the voice port. valid entries are 0 or 1. |
For the Cisco MC3810:
slot | Specifies the slot number on the Cisco MC3810. If the analog voice module (AVM) or the digital voice module (DVM) is installed, the slot number is 1. If the multiflex trunk (MFT) is installed, the slot number is 0. |
port | Specifies the voice port number. The valid entries depend on the hardware configuration, as follows: · Analog: 1 to 6 · Digital T1: 1 to 24 · Digital E1: 1 to 15 and 17 to 31 |
Global configuration
This command first appeared in Cisco IOS Release 11.3(1)T.
This command applies to both the Cisco MC3810 and the Cisco 3600 series.
Use the voice-port configuration command to switch to the voice-port configuration mode form the global configuration mode. Use the exit command to exit the voice-port configuration mode and return to the global configuration mode.
For more information about the physical characteristics of your voice network module, or how to install it, refer to the installation documentation that came with your voice network module.
The following example accesses the voice-port configuration mode for port 0, located on subunit 0 on a voice interface card installed in slot 1 for the Cisco 3600 series:
configure terminal voice-port 1/0/0
The following example accesses the voice-port configuration mode for digital voice port 24 on a Cisco MC3810 with a DVM installed:
configure terminal voice-port 1/24
You can use the master indexes or search online to find documentation of related commands.
dial-peer voice
Posted: Mon Apr 26 17:09:06 PDT 1999
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