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Cisco IOS Release 12.0(3)T provides software support for the Cisco 800 series routers. This document describes how to set up the automatic detection of Integrated Services Digital Network (ISDN) service profile identifiers (SPIDs) and switch type (for North America only); how to verify your dial-on-demand routing (DDR) configuration; how to prioritize your data and voice calls; how to configure the physical characteristics of your telephone interface; how to create dial peers; how to activate three-way call conferencing; and how to activate call transferring.
The Cisco 800 series routers connect small professional offices or telecommuters over ISDN Basic Rate Interface (BRI) lines to the Internet and corporate networks. The routers provide bridging and multiprotocol routing capability between LAN and WAN ports.
Dial peer---You can create a dial peer to determine how incoming calls are routed to the telephone ports. A dial peer also determines the calling party number for outgoing calls. A dial peer is composed of an identifying tag number, an ISDN directory number, and a telephone port number. A dial peer can also include commands to disable call waiting and to set up a distinctive ring.
ISDN directory number---The local 10-digit ISDN telephone number (including area code) of your router, such as 408-555-1111.
Telephone interface---A logical interface that you must configure to make an analog telephone, fax machine, or modem connected to a telephone port work properly.
Telephone port---The physical telephone port on the router back panel.
Cisco IOS Release 12.0(3)T is supported on these platforms:
None.
This section describes the following Cisco 800 series configuration tasks:
This task applies to North America only.
| Task | Command | |
|---|---|---|
Step 1 | Enter configuration mode. | configure terminal |
Step 2 | Enter configuration mode for the ISDN interface. | interface bri 0 |
Step 3 | Associate the ISDN local directory numbers (LDNs) provided by your telephone service provider to the first and second SPIDs. | isdn spid1 spid-number ldn [ldn] [ldn] isdn spid2 spid-number ldn [ldn] [ldn] |
Step 4 | Enable the automatic detection of ISDN SPIDs and switch type. | isdn autodetect |
Step 5 | Exit the ISDN interface configuration mode, and return to privileged EXEC mode. | end |
When entering the isdn spid1 and isdn spid2 commands, you can specify 0 for the spid-number argument to indicate that the SPID is automatically detected.
You can verify your DDR configuration by making an ISDN data call from the command-line interface (CLI). Enter the following commands from privileged EXEC mode.
| Task | Command | |
|---|---|---|
Step 1 | Initiate the data call. | isdn call interface interface dialing-string [speed 56 | 64] |
Step 2 | Disconnect the data call without bringing down the ISDN interface. | isdn disconnect interface bri 0 {b1 | b2 | all} |
By default, the router always bumps a data call for a voice call. You can reconfigure the priority of data and voice calls for telephones, fax machines, or modems connected to the router telephone ports.
| Task | Command | |
|---|---|---|
Step 1 | Enter configuration mode. | configure terminal |
Step 2 | Enter configuration mode for the ISDN interface. | interface bri 0 |
Step 3 | Configure ISDN voice priority for each ISDN directory number. | isdn voice-priority local-directory-number |
Step 4 | Exit the ISDN interface configuration mode, and return to privileged EXEC mode. | end |
If you have multiple ISDN directory numbers associated with a SPID, then the outgoing voice priority that you set for any of these directory numbers applies to the other numbers.
The setting of the pots dialing-method command affects when you hear a busy signal in the following situation:
If the setting is overlap, you hear a busy signal when you pick up the handset. If the setting is enblock, you initially hear a dial tone and then a busy signal.
You can configure the physical characteristics of the telephone interface.
| Task | Command | |
|---|---|---|
Step 1 | Enter configuration mode. | configure terminal |
Step 2 | Enter the pots country ? command to get a list of supported countries and the code you must input to indicate a particular country. By specifying a country, you are configuring your telephone to use country-specific default settings for each physical characteristic. If you need to change a country-specific default setting, you can use the optional commands described in this table. | pots country country |
Step 3 | Optional. Specify impedance of your connected devices. | pots line-type {type1 | type2 | type3} |
Step 4 | Optional. Specify how the router collects and transmits digits dialed on your connected devices. | pots dialing-method {overlap | enblock} |
Step 5 | Optional. Specify how the router notifies the connected devices when the calling party has hung up. | pots disconnect-supervision {osi | reversal} |
Step 6 | Optional. Set the pulse code modulation (PCM) encoding scheme for your connected devices. | pots encoding {alaw | ulaw} |
Step 7 | Optional. Specify the source of dial, ringback, and busy tones for your connected devices. | pots tone-source {local | remote} |
Step 8 | Optional. Specify frequency at which your connected devices ring. | pots ringing-freq {20Hz | 25Hz | 50Hz} |
Step 9 | Optional. Specify the interval in which the disconnect method is applied if your connected devices fail to detect that a calling party has disconnected. | pots disconnect-time interval |
Step 10 | Optional. Specify the interval of silence after a calling party disconnects from your connected devices. | pots silence-time interval |
Step 11 | Optional. Specify a delay in which a connected device can be rung after a previous call is directed. | pots distinctive-ring-guard- time milliseconds |
Step 12 | Exit configuration mode, and return to privileged EXEC mode. | exit |
Step 13 | Optional. Display the settings of physical characteristics as well as other information on telephone interfaces. | show pots status [1 | 2] |
You can create a dial peer to determine how incoming calls are routed to the telephone ports. You can create a total of six dial peers for the two telephone ports. There are no restrictions on how many dial peers you can create per port; for example, you can create six dial peers for port 1 and zero on port 2.
| Task | Command | |
|---|---|---|
Step 1 | Enter configuration mode. | configure terminal |
Step 2 | Set up tag number for the dial peer. | dial-peer voice tag pots |
Step 3 | Specify the local ISDN directory number assigned to the telephone interface. | destination-pattern ldn |
Step 4 | Specify the number associated with the telephone port. | port port-number |
Step 5 | Optional. Disable call waiting. | no call-waiting |
Step 6 | Optional. Set up a distinctive ring. | ring cadence-number |
Step 7 | Exit configuration mode for the dial peer. | exit |
Step 8 | Specify parameters for the ISDN interface. | interface bri 0 |
Step 9 | Specify that incoming ISDN voice calls are forwarded to devices connected to telephone ports. | isdn incoming-voice modem |
Step 10 | Exit the ISDN interface configuration mode, and return to privileged EXEC mode. | end |
Step 11 | Optional. Display all or a particular dial-peer configuration. | show dial-peer voice [tag] |
You must request this feature when you order your ISDN line. For information on ordering your ISDN line, refer to the Cisco 800 Series Routers Software Configuration Guide.
If you are connected to a National ISDN-1 (NI1) or a Northern Telecom (Nortel) DMS-100 Custom switch and your telephone service provider supplies a conference code other than 60 (the default), you must activate three-way call conferencing.
| Task | Command | |
|---|---|---|
Step 1 | Enter configuration mode. | configure terminal |
Step 2 | Enter configuration mode for the ISDN interface. | interface bri 0 |
Step 3 | Activate three-way call conferencing. | isdn conference-code range |
Step 4 | Exit the ISDN interface configuration mode, and return to privileged EXEC mode. | end |
You must request this feature when you order your ISDN line. For information on ordering your ISDN line, refer to the Cisco 800 Series Routers Software Configuration Guide.
If you are connected to an NI1 or a Nortel DMS-100 Custom switch and your telephone service provider supplies a transfer code other than 61 (the default), you must activate call transferring.
| Task | Command | |
|---|---|---|
Step 1 | Enter configuration mode. | configure terminal |
Step 2 | Enter configuration mode for the ISDN interface. | interface bri 0 |
Step 3 | Activate call transferring. | isdn transfer-code range |
Step 4 | Exit the ISDN interface configuration mode, and return to privileged EXEC mode. | end |
This section provides examples of the following Cisco 800 series configuration tasks:
To set up the automatic detection of ISDN SPIDs and switch type, follow these steps. These steps apply to North America only.
Step 1 Associate the ISDN LDNs provided by your telephone service provider to the first and second SPIDs:
isdn spid1 spid-number ldn [ldn] [ldn]
isdn spid2 spid-number ldn [ldn] [ldn]
Because the SPID numbers provided by your telephone service provider are automatically detected, you do not need to specify them in this command; instead, you can specify 0 to indicate that the SPID numbers should be automatically detected.
For example, if your telephone service provider assigned 408-555-1111 as a primary directory number and 408-555-2222 as a secondary directory number for the first SPID and 408-555-3333 and 408-555-4444 for the second SPID, you can enter the following commands:
router (config-if)# isdn spid1 0 4085551111 4085552222 router (config-if)# isdn spid2 0 4085553333 4085554444
Always provide the complete directory number, including the area code.
Step 2 Enable the automatic detection of ISDN SPID numbers and switch type:
router (config-if)# isdn autodetect
You can test your DDR configuration by making an ISDN data call through the CLI:
Step 1 Initiate the data call:
isdn call interface interface dialing-string [speed 56 | 64]
For example, enter the following command to initiate the call through the BRI to 555-1111 at the line speed of 56 kbps:
router# isdn call interface bri 0 5551111 speed 56
Step 2 Disconnect the data call without bringing down the interface:
isdn disconnect interface interface {b1 | b2 | all}
For example, enter the following command to disconnect the data call on B channel 1 of the BRI:
router# isdn disconnect interface bri 0 b1
To control the priority of data and voice calls for telephones, fax machines, and modems connected to a router telephone port, enter the following command:
isdn voice-priority local-directory-number {in | out} {always | conditional | off}
The following is a sample voice priority configuration:
router (config-if)# isdn voice-priority 5551111 in conditional router (config-if)# isdn voice-priority 5551111 out conditional router (config-if)# isdn voice-priority 5552222 in off router (config-if)# isdn voice-priority 5552222 out off
In this example, if an ISDN circuit endpoint is busy with a data call or calls and either a voice call comes in (incoming) or you attempt to place a voice call (outgoing), the data call is handled in the following ways:
To configure the telephone interface physical characteristics, follow these steps:
Step 1 Specify the country where your router is located:
pots country country
Enter the pots country ? command to get a list of supported countries and the code you must input to indicate a particular country. For example, if your router is located in Germany, enter the following command:
router (config)# pots country de
This command determines the physical characteristics of the telephone interfaces. By specifying Germany, you are configuring your telephone to use Germany-specific default settings for each of the physical characteristics.
Step 2 Exit to privileged EXEC mode:
router (config)# exit
Step 3 Display the setting of each physical characteristic:
router # show pots status
The following sample output shows German-specific default settings for each physical characteristic. (The show pots status command typically displays telephone interface physical characteristics and status of telephone ports 1 and 2. This sample output is truncated to display only the physical characteristics.)
POTS Global Configuration: Country: Germany Dialing Method: Overlap, Tone Source: Remote, CallerId Support: NO Line Type: Complex Impedance, PCM Encoding: a-law, Disc Type: OSI, Ringing Frequency: 20Hz, Distinctive Ring Guard timer: 0 msec Disconnect timer: 1000 msec, Disconnect Silence timer: 5 sec ...
Step 4 After viewing the default settings for the physical characteristics, determine if you need to change any settings.
Step 5 If necessary, change any country-specific default settings.
For a summary of the physical characteristics commands, refer to the "Configuring Telephone Interface Physical Characteristics" section. For example, to change the dialing method from overlap to enblock, do the following:
(a) Enter configuration mode:
router # configure terminal
(b) Enter the following command:
router (config)# pots dialing-method enblock
dial-peer voice 1 pots
destination-pattern 5551111
port 1
no call-waiting
ring 0 dial-peer voice 2 pots
destination-pattern 5552222
port 2
no call-waiting
ring 0
When a caller dials 555-1111, the call is routed to port 1. When a caller dials 555-2222, the call is routed to port 2. If the dial peers are not created, calls to both numbers are routed to port 1.
After creating the dial peers, enter the isdn incoming-voice modem command to ensure that the incoming ISDN voice calls are forwarded to the telephone ports.
To activate three-way call conferencing, enter the following command:
isdn conference-code range
For example, if your telephone service provider supplies 61 as the conference code, enter the following command:
router (config-if)# isdn conference-code 61
To activate call transferring, enter the following command:
isdn transfer-code range
For example, if your telephone service provider supplies 62 as the transfer code, enter the following command:
router (config-if)# isdn transfer-code 62
This section documents new and modified commands specific to the Cisco 800 series routers. All other commands are documented in the Cisco IOS Release 12.0 command references.
Use the call-waiting interface configuration command to enable call waiting. Use the no form of this command to disable call waiting.
call-waiting
no call-waiting
This command has no arguments or keywords.
Call waiting is enabled.
Interface configuration
You must specify this command when creating a dial peer. This command will not work if it is not specified within the context of a dial peer. For information on creating a dial peer, refer to the Cisco 800 Series Routers Software Configuration Guide.
The following example disables call waiting:
router (config-dial-peer)# no call-waiting
destination-pattern
dial-peer voice pots
port
ring
show dial-peer voice
Use the destination-pattern interface configuration command to specify the ISDN directory number for the telephone interface. Use the no form of this command to disable the specified ISDN directory number.
destination-pattern ldn
no destination-pattern
ldn | Local ISDN directory number assigned by your telephone service provider. |
A default ISDN directory number is not defined for this interface.
Interface configuration
You must specify this command when creating a dial peer. This command will not work if it is not specified within the context of a dial peer. For information on creating a dial peer, refer to the
Cisco 800 Series Routers Software Configuration Guide.
Do not specify an area code with the local ISDN directory number.
The following example specifies 555-1111 as the local ISDN directory number:
router (config-dial-peer)# destination-pattern 5551111
dial-peer voice pots
no call-waiting
port
ring
show dial-peer voice
Use the dial-peer voice pots global configuration command to create a dial peer that determines how incoming calls are routed to the telephone ports. Use the no form of this command to delete the specified dial peer.
dial-peer voice tag pots
no dial-peer voice tag pots
tag | Tag number from 1 through 6. |
pots | Plain old telephone service (POTS). Create a dial peer for the telephone interface. |
Default dial peers are not defined.
Global configuration
You can create a maximum of six dial peers. Within this, there are no restrictions on the number of dial peers you can create per telephone port. For example, you can create six dial peers for telephone port 1 and none on telephone port 2.
The following example creates dial peer 1:
router (config)# dial-peer voice 1 pots router (config-dial-peer)#
destination-pattern
no call-waiting
port
ring
show dial-peer voice pots
Use the isdn autodetect interface configuration command to enable the automatic detection of ISDN SPIDs and switch type. Use the no form of this command to disable the automatic detection of ISDN SPIDs and switch type.
isdn autodetect
no isdn autodetect
This command has no arguments or keywords.
The automatic detection of ISDN SPIDs and switch type is disabled.
Interface configuration
This command applies to North America only. If you are outside of North America, you must use the isdn switch-type switch-type interface configuration command to specify the ISDN switch type.
The following example enables the automatic detection of ISDN SPIDs and switch type:
router (config-if)# isdn autodetect
isdn spid1
isdn spid2
Use the isdn call interface privileged EXEC command to make an ISDN data call.
isdn call interface interface dialing-string [speed 56 | 64]
interface | Interface number. |
dialing-string | Telephone number used for making ISDN data call. |
speed | (Optional) Line speed (56 or 64 kbps) used for making ISDN data call. |
The default B-channel speed is 64 kbps.
Privileged EXEC
You can use the isdn call interface command to test your DDR configuration. You can also use this command to verify the dialing string and speed without having to know the IP address of the remote router or without configuring a dialer map or string.
The following example makes an ISDN data call through interface bri 0 to 555-1111 and at a line speed of 56 kbps:
router# isdn call interface bri 0 5551111 speed 56
isdn disconnect interface
Use the isdn conference-code interface configuration command to activate three-way call conferencing. Use the no form of this command to disable three-way call conferencing.
isdn conference-code range
no isdn conference-code
range | Number from 0 through 999 (ISDN conference code). |
The default code is 60.
Interface configuration
Use this command if your ISDN line is connected to an NI1 or a Nortel DMS-100 Custom switch. Your telephone service provider should provide an ISDN conference code when you order three-way call conferencing.
The following example specifies 61 as the ISDN conference code:
router (config-if)# isdn conference-code 61
Use the isdn disconnect interface privileged EXEC command to disconnect an ISDN data call without bringing down the interface.
isdn disconnect interface interface {b1 | b2 | all}
interface | Interface type and number, such as bri 0. |
b1 | B channel 1. |
b2 | B channel 2. |
all | B channels 1 and 2. |
A default interface is not defined.
Privileged EXEC
You can use the isdn disconnect interface command to disconnect any ongoing data calls placed manually or caused by DDR.
The following example disconnects an ISDN data call through interface bri 0 and B channel 1:
router# isdn disconnect interface bri 0 b1
isdn call interface
Use the isdn spid1 interface configuration command to associate up to three ISDN local directory numbers provided by your telephone service provider to the first SPID. Use the no form of this command to disable the first SPID.
isdn spid1 spid-number ldn [ldn] [ldn]
no isdn spid1 spid-number ldn [ldn] [ldn]
spid-number | Number that identifies the ISDN B channel. The SPID format is generally an ISDN telephone number with numbers added to it, such as 40855522220101. |
ldn | ISDN local directory number. You can optionally specify second and third LDNs. |
A default SPID number and ISDN local directory numbers are not defined.
Interface configuration
This command applies only to North America. If you want the SPID to be automatically detected, you can specify 0 for the spid-number argument.
The following example shows how to specify that the SPID should be automatically detected, that the primary ISDN local directory number is 4085551111, and that the secondary number is 4085552222:
router (config-if)# isdn spid1 0 4085551111 4085552222
isdn spid2
isdn autodetect
Use the isdn spid2 interface configuration command to associate up to three ISDN local directory numbers provided by your telephone service provider to the second SPID. Use the no form of this command to disable the second SPID.
isdn spid2 spid-number ldn [ldn] [ldn]
no isdn spid2 spid-number ldn [ldn] [ldn]
spid-number | Number that identifies the ISDN B channel. The SPID format is generally an ISDN telephone number with numbers added to it, such as 40855522220101. |
ldn | ISDN local directory number. You can optionally specify second and third LDNs. |
A default SPID number and ISDN local directory numbers are not defined.
Interface configuration
This command applies only to North America. If you want the SPID to be automatically detected, you can specify 0 for the spid-number variable.
The following example specifies that the SPID should be automatically detected, that the primary ISDN local directory number is 4085551111, and that the secondary number is 4085552222:
router (config-if)# isdn spid2 0 4085551111 4085552222
isdn spid1
isdn autodetect
Use the isdn transfer-code interface configuration command to activate call transferring. Use the no form of this command to disable call transferring.
isdn transfer-code range
no isdn transfer-code
range | Number from 0 to 999 (ISDN transfer code). |
The default code is 61.
Interface configuration
Use this command if your ISDN line is connected to a NI1 or a Nortel DMS-100 Custom switch. Your telephone service provider should issue an ISDN transfer code when you order call transferring.
The following example specifies 62 as the ISDN transfer code:
router (config-if)# isdn transfer-code 62
Use the isdn voice-priority interface configuration command to control the priority of data and voice calls for the telephones, fax machines, and modems connected to the router telephone ports. If an ISDN circuit endpoint is busy with a data call or calls and either a voice call comes in (incoming) or you attempt to place a voice call (outgoing), the data call is handled according to the setting of this command. Use the no form of this command to disable a specified ISDN voice priority setting and to use the default setting.
isdn voice-priority local-directory-number {in | out} {always | conditional | off}
no isdn voice-priority local-directory-number
local-directory-number | Local ISDN directory number assigned by your telephone service provider. |
in | Incoming voice call. |
out | Outgoing voice call. |
always | Always bump a data call for a voice call. |
conditional | Bump a data call only if there is more than one call to the same destination. |
off | Never bump a data call for a voice call. |
A data call is never bumped for an incoming or outgoing voice call.
Interface configuration
If you are in North America and have multiple ISDN directory numbers associated with a SPID, the outgoing voice priority that you set for any of these directory numbers applies to the other directory numbers. For example, if you enter the following commands, the outgoing voice priority for all directory numbers specified in the isdn spid1 command is set to conditional:
router (config-if)# isdn spid1 0 4085551111 4085552222 4085553333 router (config-if)# isdn voice-priority 5551111 out conditional
The setting of the pots dialing-method command affects when you hear a busy signal in the following situation:
If the setting is overlap, you hear a busy signal when you pick up the handset. If the setting is enblock, you initially hear a dial tone and then a busy signal.
The following example specifies that a data call for the specified ISDN directory number never be bumped for an incoming or an outgoing voice call:
router (config-if)# isdn voice-priority 5551111 in off router (config-if)# isdn voice-priority 5551111 out off
isdn spid1
isdn spid2
pots dialing-method
Use the port interface configuration command to specify a telephone port to which an incoming voice call is routed. Use the no form of this command to disable the specified port.
port port-number
no port port-number
port-number | Telephone port 1 or 2. To determine the telephone port number, see the telephone port markings on the router back panel. |
The default is telephone port 1.
Interface configuration
You must specify this command when creating a dial peer. This command will not work if it is not specified within the context of a dial peer. For information on creating a dial peer, refer to the Cisco 800 Series Routers Software Configuration Guide.
The following example specifies that an incoming voice call is routed to telephone port 2:
router (config-dial-peer)# port 2
destination-pattern
dial-peer voice pots
no call-waiting
ring
show dial-peer voice
Use the pots country global configuration command to configure your connected telephones, fax machines, or modems to use country-specific default settings for each physical characteristic. Use the no form of this command to disable the use of country-specific default settings for each physical characteristic.
pots country country
no pots country country
country | Country that your router is in. Enter the pots country ? command to get a list of supported countries and the code you must enter to indicate a particular country. |
A default country is not defined.
Global configuration
If you need to change a country-specific default setting of a physical characteristic, you can use the associated command listed in the "Related Commands" section.
The following example specifies that the devices connected to the telephone ports use default settings specific to Germany for the physical characteristics:
router (config)# pots country de
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
show pots status
Use the pots dialing-method global configuration command to specify how the router collects and transmits digits dialed on your connected telephones, fax machines, or modems. Use the no form of this command to disable the specified dialing method.
pots dialing-method {overlap | enblock}
no pots dialing-method {overlap | enblock}
overlap | The router transmits each digit dialed in a separate message. |
enblock | The router collects all digits dialed and transmits the digits in one message. |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
To interrupt the collection and transmission of dialed digits, enter a pound sign (#) or stop dialing digits until the interdigit timer runs out (10 seconds).
The following example specifies that the router uses the enblock dialing method:
router (config)# pots dialing-method enblock
pots country
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
show pots status
Use the pots disconnect-supervision global configuration command to specify how a router notifies the connected telephones, fax machines, or modems when the calling party has disconnected. Use the no form of this command to disable the specified disconnect method.
pots disconnect-supervision {osi | reversal}
no pots disconnect-supervision {osi | reversal}
osi | Open switching interval (OSI) is the duration for which DC voltage applied between tip and ring conductors of a telephone port is removed. |
reversal | Polarity reversal of tip and ring conductors of a telephone port. |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
Most countries except Japan typically use the osi option. Japan typically uses the reversal option.
The following example specifies that the router uses the osi disconnect method:
router (config)# pots disconnect-supervision osi
pots country
pots dialing-method
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
show pots status
Use the pots disconnect-time global configuration command to specify the interval in which the disconnect method is applied if your connected telephones, fax machines, or modems fail to detect that a calling party has disconnected. The pots disconnect-supervision command configures the disconnect method. For more information, refer to the "pots disconnect-supervision" section. Use the no form of this command to disable the specified disconnect interval.
pots disconnect-time interval
no pots disconnect-time interval
interval | Number from 50 to 2000 (milliseconds). |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
The following example specifies that the connected devices apply the configured disconnect method for 100 milliseconds after a calling party disconnects:
router (config)# pots disconnect-time 100
pots country
pots dialing-method
pots disconnect-supervision
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
show pots status
Use the pots distinctive-ring-guard-time global configuration command to specify a delay in which a telephone port can be rung after a previous call is disconnected. Use the no form of this command to disable the specified delay.
pots distinctive-ring-guard-time milliseconds
no pots distinctive-ring-guard-time milliseconds
milliseconds | Number from 0 to 1000 (milliseconds). |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
The following example specifies that a telephone port can be rung 100 milliseconds after a previous call is disconnected:
router (config)# pots distinctive-ring-guard-time 100
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
ring
show pots status
Use the pots encoding global configuration command to specify the pulse code modulation (PCM) encoding scheme for your connected telephones, fax machines, or modems. Use the no form of this command to disable the specified PCM encoding scheme.
pots encoding {alaw | ulaw}
no pots encoding {alaw | ulaw}
alaw | International Telecommunication Union Telecommunication Standardization Section (ITU-T) PCM encoding scheme used to represent analog voice samples as digital values. |
ulaw | North American PCM encoding scheme used to represent analog voice samples as digital values. |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
Europe typically uses the alaw option. North America typically uses the ulaw option.
The following example specifies alaw as the PCM encoding scheme:
router (config)# pots encoding alaw
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
show pots status
Use the pots line-type global configuration command to specify the impedance of your connected telephones, fax machines, or modems. Use the no form of this command to disable the specified line type.
pots line-type {type1 | type2 | type3}
no pots line-type {type1 | type2 | type3}
type1 | Runs at 600 ohms. |
type2 | Runs at 900 ohms. |
type3 | Runs at 300/400 ohms. |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
The following example specifies type1 as the line type:
router (config)# pots line-type type1
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots ringing-freq
pots silence-time
pots tone-source
show pots status
Use the pots ringing-freq global configuration command to specify the frequency at which your connected telephones, fax machines, or modems ring. Use the no form of this command to disable the specified ringing frequency.
pots ringing-freq {20Hz | 25Hz | 50Hz}
no pots ringing-freq {20Hz | 25Hz | 50Hz}
20Hz | Connected devices ring at 20 Hz. |
25Hz | Connected devices ring at 25 Hz. |
50Hz | Connected devices ring at 50 Hz. |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
The following example specifies a ringing frequency of 50 Hz:
router (config)# pots ringing-freq 50Hz
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots silence-time
pots tone-source
show pots status
Use the pots silence-time global configuration command to specify the interval of silence after a calling party disconnects. Use the no form of this command to disable the specified silence time.
pots silence-time interval
no pots silence-time interval
interval | Number from 0 to 10 (seconds). |
Depends on the setting of the pots country command. For more information, refer to the pots country command.
Global configuration
The following example specifies 10 seconds as the interval of silence:
router (config)# pots silence-time 10
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots tone-source
show pots status
Use the pots tone-source global configuration command to specify the source of dial, ringback, and busy tones for your connected telephones, fax machines, or modems. Use the no form of this command to disable the specified tone source.
pots tone-source {local | remote}
no pots tone-source {local | remote}
local | Router supplies the tones. |
remote | Telephone switch supplies the tones. |
The default setting is local.
Global configuration
This command applies only to ISDN lines connected to a EURO-ISDN (NET3) switch.
The following example specifies remote as the tone source:
router (config)# pots tone-source remote
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
show pots status
Use the ring interface configuration command to set up a distinctive ring for your connected telephones, fax machines, or modems. Use the no form of this command to disable the specified distinctive ring.
ring cadence-number
no ring cadence-number
cadence-number | Number from 0 through 2: · Type 0 is a primary ringing cadence---default ringing cadence for country your router is in. · Type 1 is a distinctive ring---0.8 seconds on, 0.4 seconds off, 0.8 seconds on, 0.4 seconds off. · Type 2 is a distinctive ring---0.4 seconds on, 0.2 seconds off, 0.4 seconds on, 0.2 seconds off, 0.8 seconds on, 4 seconds off. |
The default is 0.
Interface configuration
You can specify this command when creating a dial peer. This command will not work if it is not specified within the context of a dial peer. For information on creating a dial peer, refer to the Cisco 800 Series Routers Software Configuration Guide.
The following example specifies the type 1 distinctive ring:
router (config-dial-peer)# ring 1
destination-pattern
dial-peer voice pots
no call-waiting
port
pots distinctive-ring-guard-time
ring
show dial-peer voice
Use the show dial-peer voice privileged EXEC command to display the dial-peer configurations.
show dial-peer voice [tag]
tag | (Optional) Tag number of a dial peer that you created by using the dial-peer voice command. |
Privileged EXEC
The show dial-peer voice command displays all configured dial peers.
The following is a sample output from the show dial-peer voice command. Table 1 describes the fields in this output.
router# show dial-peer voice
VoiceEncapPeer1
tag = 1
destination-pattern = '5551111'
voice-port = 1
ring cadence = 0
call-waiting disabled
VoiceEncapPeer2
tag = 2
destination-pattern = '5552222'
voice-port = 2
ring cadence = 0
call-waiting disabled
| Field | Descriptions |
|---|---|
VoiceEncapPeer | Dial peer number. Indented fields that follow are associated with this dial peer. |
tag | Tag number associated with this dial peer. |
destination-pattern | Local ISDN directory number associated with this dial peer. |
voice-port | Telephone port number associated with this dial peer. |
ring cadence | Ring cadence number associated with this dial peer. |
call-waiting | Status of call-waiting feature. Call-waiting indicates that the feature is enabled. No call-waiting indicates that the feature is disabled. |
destination-pattern
dial-peer voice pots
no call-waiting
port
ring
Use the show pots status privileged EXEC command to display the settings of the telephone port physical characteristics as well as other information on the telephone interfaces.
show pots status [1 | 2]
1 | (Optional) Display the settings of telephone port 1. |
2 | (Optional) Display the settings of telephone port 2. |
Privileged EXEC
The show pots status command displays the settings and information for both telephone ports.
The following is a sample output from the show pots status command. Table 2 describes the fields in this output.
router # show pots status
POTS Global Configuration:
Country: United States
Dialing Method: Overlap, Tone Source: Remote, CallerId Support: YES
Line Type: 600 ohm, PCM Encoding: u-law, Disc Type: OSI,
Ringing Frequency: 20Hz, Distinctive Ring Guard timer: 0 msec
Disconnect timer: 1000 msec, Disconnect Silence timer: 5 sec
TX Gain: 6dB, RX Loss: -6dB,
Filter Mask: 6F
Adaptive Cntrl Mask: 0
POTS PORT: 1
Hook Switch Finite State Machine:
State: On Hook, Event: 0
Hook Switch Register: 10, Suspend Poll: 0
CODEC Finite State Machine:
State: Idle, Event: 0
Connection: None, Call Type: Two Party, Direction: Rx only
Line Type: 600 ohm, PCM Encoding: u-law, Disc Type: OSI,
Ringing Frequency: 20Hz, Distinctive Ring Guard timer: 0 msec
Disconnect timer: 1000 msec, Disconnect Silence timer: 5 sec
TX Gain: 6dB, RX Loss: -6dB,
Filter Mask: 6F
Adaptive Cntrl Mask: 0
CODEC Registers:
SPI Addr: 2, DSLAC Revision: 4
SLIC Cmd: 0D, TX TS: 00, RX TS: 00
Op Fn: 6F, Op Fn2: 00, Op Cond: 00
AISN: 6D, ELT: B5, EPG: 32 52 00 00
SLIC Pin Direction: 1F
CODEC Coefficients:
GX: A0 00
GR: 3A A1
Z: EA 23 2A 35 A5 9F C2 AD 3A AE 22 46 C2 F0
B: 29 FA 8F 2A CB A9 23 92 2B 49 F5 37 1D 01
X: AB 40 3B 9F A8 7E 22 97 36 A6 2A AE
R: 01 11 01 90 01 90 01 90 01 90 01 90
GZ: 60
ADAPT B: 91 B2 8F 62 31
CSM Finite State Machine:
Call 0 - State: idle, Call Id: 0x0
Active: no
Call 1 - State: idle, Call Id: 0x0
Active: no
Call 2 - State: idle, Call Id: 0x0
Active: no
POTS PORT: 2
Hook Switch Finite State Machine:
State: On Hook, Event: 0
Hook Switch Register: 20, Suspend Poll: 0
CODEC Finite State Machine:
State: Idle, Event: 0
Connection: None, Call Type: Two Party, Direction: Rx only
Line Type: 600 ohm, PCM Encoding: u-law, Disc Type: OSI,
Ringing Frequency: 20Hz, Distinctive Ring Guard timer: 0 msec
Disconnect timer: 1000 msec, Disconnect Silence timer: 5 sec
TX Gain: 6dB, RX Loss: -6dB,
Filter Mask: 6F
Adaptive Cntrl Mask: 0
CODEC Registers:
SPI Addr: 3, DSLAC Revision: 4
SLIC Cmd: 0D, TX TS: 00, RX TS: 00
Op Fn: 6F, Op Fn2: 00, Op Cond: 00
AISN: 6D, ELT: B5, EPG: 32 52 00 00
SLIC Pin Direction: 1F
CODEC Coefficients:
GX: A0 00
GR: 3A A1
Z: EA 23 2A 35 A5 9F C2 AD 3A AE 22 46 C2 F0
B: 29 FA 8F 2A CB A9 23 92 2B 49 F5 37 1D 01
X: AB 40 3B 9F A8 7E 22 97 36 A6 2A AE
R: 01 11 01 90 01 90 01 90 01 90 01 90
GZ: 60
ADAPT B: 91 B2 8F 62 31
CSM Finite State Machine:
Call 0 - State: idle, Call Id: 0x0
Active: no
Call 1 - State: idle, Call Id: 0x0
Active: no
Call 2 - State: idle, Call Id: 0x0
Active: no
Time Slot Control: 0
| Field | Descriptions |
|---|---|
POTS Global Configuration | Displays the settings of the telephone port physical characteristic commands. Also displays the following:
|
Hook Switch Finite State Machine | Device driver that tracks state of telephone port hook switch. |
CODEC Finite State Machine | Device driver that controls telephone port CODEC hardware. |
CODEC Registers | Register contents of telephone port CODEC hardware. |
CODEC Coefficients | CODEC coefficients selected by telephone port driver. Selected line type determines CODEC coefficients. |
CSM Finite State Machine | State of call-switching module (CSM) software. |
Time Slot Control | Register that determines if telephone port voice or data packets are transmitted to an ISDN B channel. |
pots country
pots dialing-method
pots disconnect-supervision
pots disconnect-time
pots distinctive-ring-guard-time
pots encoding
pots line-type
pots ringing-freq
pots silence-time
pots tone-source
This section documents the new debug pots command. The Cisco IOS Release 12.0 debug command reference manuals document all other debug commands used with this feature.
Use the debug pots privileged EXEC command to display information on the telephone interfaces. Use the no form of this command to disable debugging output.
debug pots {driver | csm} [1 | 2]
no debug pots {driver | csm} [1 | 2]
driver | Display driver debug information. |
csm | Display CSM debug information. |
1 | (Optional) Display information for telephone port 1 only. |
2 | (Optional) Display information for telephone port 2 only. |
Privileged EXEC
The debug pots command displays driver and CSM debug information for telephone ports 1 and 2.
The following is a sample display from the debug pots driver 1 command. This sample display indicates that the telephone port driver is not receiving caller ID information from the ISDN line. Therefore, the analog caller ID device attached to the telephone port does not display caller ID information.
router# debug pots driver 1 00:01:51:POTS DRIVER port=1 activate ringer: cadence=0 callerId=Unknown 00:01:51:POTS DRIVER port=1 state=Idle drv_event=RING_EVENT 00:01:51:POTS DRIVER port=1 enter_ringing 00:01:51:POTS DRIVER port=1 cmd=19 00:01:51:POTS DRIVER port=1 activate disconnect 00:01:51:POTS DRIVER port=1 state=Ringing drv_event=DISCONNECT_EVENT 00:01:51:POTS DRIVER port=1 cmd=1A 00:01:51:POTS DRIVER port=1 enter_idle 00:01:51:POTS DRIVER port=1 ts connect: 0 0 00:01:51:POTS DRIVER port=1 cmd=D 00:01:51:POTS DRIVER port=1 report onhook 00:01:51:POTS DRIVER port=1 activate tone=SILENCE_TONE 00:01:51:POTS DRIVER port=1 state=Idle drv_event=TONE_EVENT 00:01:51:POTS DRIVER port=1 activate tone=SILENCE_TONE 00:01:51:POTS DRIVER port=1 state=Idle drv_event=TONE_EVENT 00:01:53:POTS DRIVER port=1 activate ringer: cadence=0 callerId=Unknown 00:01:53:POTS DRIVER port=1 state=Idle drv_event=RING_EVENT 00:01:53:POTS DRIVER port=1 enter_ringing 00:01:53:POTS DRIVER port=1 cmd=19 00:01:55:POTS DRIVER port=1 cmd=1A 00:02:49:POTS DRIVER port=1 state=Ringing drv_event=OFFHOOK_EVENT 00:02:49:POTS DRIVER port=1 cmd=1A 00:02:49:POTS DRIVER port=1 enter_suspend 00:02:49:POTS DRIVER port=1 cmd=A 00:02:49:POTS DRIVER port=1 report offhook 00:02:49:POTS DRIVER port=1 activate connect: endpt=1 calltype=TWO_PARTY_CALL 00:02:49:POTS DRIVER port=1 state=Suspend drv_event=CONNECT_EVENT 00:02:49:POTS DRIVER port=1 enter_connect: endpt=1 calltype=0 00:02:49:POTS DRIVER port=1 cmd=A 00:02:49:POTS DRIVER port=1 ts connect: 1 0 00:02:49:POTS DRIVER port=1 activate connect: endpt=1 calltype=TWO_PARTY_CALL 00:02:49:POTS DRIVER port=1 state=Connect drv_event=CONNECT_EVENT 00:02:49:POTS DRIVER port=1 enter_connect: endpt=1 calltype=0 00:02:49:POTS DRIVER port=1 cmd=A 00:02:49:POTS DRIVER port=1 ts connect: 1 0 00:02:55:POTS DRIVER port=1 state=Connect drv_event=ONHOOK_EVENT 00:02:55:POTS DRIVER port=1 enter_idle 00:02:55:POTS DRIVER port=1 ts connect: 0 0 00:02:55:POTS DRIVER port=1 cmd=D 00:02:55:POTS DRIVER port=1 report onhook 00:02:55:POTS DRIVER port=1 activate tone=SILENCE_TONE 00:02:55:POTS DRIVER port=1 state=Idle drv_event=TONE_EVENT 00:02:55:POTS DRIVER port=1 activate tone=SILENCE_TONE 00:02:55:POTS DRIVER port=1 state=Idle drv_event=TONE_EVENT
The following is sample display from the debug pots csm 1 command. This sample display indicates that a dial peer contains an invalid destination pattern (555-1111).
router# debug pots csm 1 01:57:28:EVENT_FROM_ISDN:dchanidb=0x66CB38, call_id=0x11, ces=0x2 bchan=0x0, event=0x1, cause=0x0 01:57:28:Dial peer not found, route call to port 1 01:57:28:CSM_PROC_IDLE:CSM_EVENT_ISDN_CALL, call_id=0x11, port=1 01:57:28:Calling number `5551111' 01:57:40:CSM_PROC_RINGING:CSM_EVENT_VDEV_OFFHOOK, call_id=0x11, port=1 01:57:40:EVENT_FROM_ISDN:dchan_idb=0x66CB38, call_id=0x11, ces=0x2 bchan=0x0, event=0x4, cause=0x0 01:57:40:CSM_PROC_CONNECTING:CSM_EVENT_ISDN_CONNECTED, call_id=0x11, port=1 01:57:47:CSM_PROC_CONNECTING:CSM_EVENT_VDEV_ONHOOK, call_id=0x11, port=1 01:57:201863503872: %ISDN-6-DISCONNECT:Interface BRI0:1 disconnected from unknown, call lasted 5485 seconds 01:57:47: %ISDN-6-DISCONNECT:Interface BRI0:1 disconnected from unknown, call lasted 5485 seconds 01:57:47:EVENT_FROM_ISDN:dchan _idb=0x66CB38, call_id=0x11, ces=0x2 bchan=0xFFFFFFFF, event=0x0, cause=0x1 01:57:47:CSM_PROC_NEAR_END_DISCONNECT:CSM_EVENT_ISDN_DISCONNECTED, call_id=0x11, port=1
For additional software configuration information for the Cisco 800 series routers, refer to the following documents:
Posted: Wed May 26 10:45:19 PDT 1999
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