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The Digital T1/E1 Packet Voice Trunk Network Module provides a flexible and scalable T1/E1 voice solution for Cisco 2600 and 3600 series multiservice modular access routers and supports up to 60 voice channels in a single network module. A single Packet Voice Trunk Network Module supports both on-premise and off-premise connections to both Private branch exchanges (PBXs) and public switched telephone networks (PSTNs). This product is for enterprise branches and large businesses wishing to migrate to packet-based multiservice infrastructures. It leverages investments in existing legacy telephony equipment and enables the deployment of new packet voice applications while reducing recurring telephony charges.
The Digital T1/E1 Packet Voice Trunk Network Module uses a real-time cpu and powerful digital signal processors (DSPs) which support all functions needed to provide the highest levels of voice fidelity and quality, eliminating the processing burden from the Cisco 2600 or 3600`s main CPU. These DSPs can be scaled to support from six to 60 voice channels in a single Network Module using a number of different voice compression algorithms. The packet voice trunk network module uses MultiFlex Voice/WAN interface cards (VWICs) which offer single and dual port T1 and E1 interfaces for additional versatility and scalability. This flexibility allows voice and fax traffic to travel cost-efficiently across a user`s wide area network (WAN) or directly over the PSTN.
The Digital T1/E1 Packet Voice Trunk network module combined with the Cisco 2600/3600 series multiservice access routers make an ideal single-box solution for packetized voice in branches and regional offices. Up to six packet voice trunk network modules can be configured in a single modular access router, supporting from 6 to 288 voice channels. Now, enterprise offices of several hundred users can deploy multiservice networking using a single box solution. Service providers, providing data and telephony managed services can connect a single platform to their central offices or points of presence (POPs) with a single high-speed data connection. The packet voice trunk network modules seamlessly interoperate with smaller and larger multiservice platforms from Cisco. The Digital T1/E1 Packet Voice Trunk Network Module provides an ideal migration path to a multiservice network. Customers can gradually shift voice traffic from traditional circuit-switched networks to a single infrastructure carrying data, voice and video over packet networks without replacing any legacy PBX and key communication system equipment. The Digital T1/E1 Packet Voice Trunk network module can also provide the gateway or portal to the PSTN for Cisco IP phones which can be used in conjunction with legacy equipment.
The Digital T1/E1 Packet Voice Trunk Network Module provides:
A gateway interface to PBXs to route voice along with data and video over a single data infrastructure
A gateway to the PSTN allowing users to gain access to the public telephone network to and from legacy PBX, phone, fax, key communication systems, as well as Cisco IP phones
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Product Number |
Cisco 2600 |
Cisco 3620/40/60 |
|---|---|---|
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NM- HDV-1T1-24 |
12.0(5)XD |
12.0(5)XD |
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NM-HDV-1T1-24E |
12.0(5)XD |
12.0(5)XD |
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NM-HDV-2T1-48 |
12.0(5)XD |
12.0(5)XD |
|
PVDM-12= |
12.0(5)XD |
12.0(5)XD |
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NM-HDV= |
12.0(5)XD |
12.0(5)XD |
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VWIC-1MFT-T1= |
12.0(5)XD |
12.0(5)XD |
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VWIC-2MFT-T1= |
12.0(5)XD |
12.0(5)XD |
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VWIC-2MFT-T1-DI= |
12.0(5)XD |
12.0(5)XD |
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VWIC-1MFT-E1= |
12.0(5)XD |
12.0(5)XD |
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VWIC-2MFT-E1= |
12.0(5)XD |
12.0(5)XD |
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VWIC-2MFT-E1-DI= |
12.0(5)XD |
12.0(5)XD |
Up to 60 channels of medium-complexity fax-relay (Group 3 up to 14.4K)
Up to 60 channels of medium-complexity voice (G729a/b, G726, G.711)
Up to 30 channels of high-complexity voice (G729, G723.1, G728)
Multiple voice channels per DSP (system configured)
Scalable number of on-board DSPs using PVDM-12= Voice Feature Support
Private line automatic ring-down (PLAR)
Connection trunk
PBX tie-line replacement
Answer-address, incoming-called-number on dial-peers
Echo cancellation (up to 32 ms configurable)
Silence suppression, voice activity detection (VAD)
Comfort noise generation
Drop and insert functionality (port to port for voice)
Telephony interface signaling (T1 CAS)
E&M (wink, immediate, delay), FXO/FXS loop-start and ground-start signaling
Inbound signaling (such as DTMF, MF support) Cisco IOS and Platform Support
H.323 version 1 and 2 feature support
H.323 gateway RAS support (version 1 / version 2)
Supports ITU Standard Compression Algorithms (G.729, G.723.1, G.729a/b, G.711, G.728, G.726)
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Description |
Specification |
|---|---|
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Quality of Service (QoS) Standards |
IETF: WFQ, WRED, CRTP, PQ, and other IOS capabilities |
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Signaling Standards |
ITU-T: H.323 v1 and v2 T1 CAS E&M Type I, II, III, IV E&M Wink Start, Wink Immediate, Wink Delay FXS Loop-Start, Ground-Start FXO Loop-Start, Ground-Start |
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Clock Support |
Pull-in range +/-64 PPM, Pass-through +/-32 PPM |
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Safety Standards |
UL 1950 3rd. edition CSA 950, 1995 version IEC 950 EN 60950 AS/NZS: 3260 with amendment 134 |
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Maximum Simultaneous Call Setup |
60 Calls per Network Module |
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Interface Type |
RJ48 Connector |
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Maximum Simultaneous Call Setup |
60 Calls |
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Interface Type |
RJ45 Connector |
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Telco Standards |
AT&T Accunet (62411) ATT 54016 |
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Line Bit Rate |
T1, 1.544 Mbps |
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Line Code |
AMI, B8ZS AMI Ones Density Enforced for N x 56kbps channels |
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Framing Format |
D4 (SF) and ESF |
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Output level (LBO) |
0, -7.5, or -15 dB |
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Input Level |
+1dB0 down to -24 dB0 |
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Line Frequency |
1.544 Mbps +/- 75 bps/32PPM |
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DTE/DCE Interface (VIC mode) |
G.704/structured |
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Diagnostic Loopback Support |
ANSI T1.403 Annex B/V.54 loopup/down code recognition, network loopback, and user initiated loopbacks, network payload loopback, local DTE loopback, remote line (codes: V.541, loop up, and loop down) |
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Alarm Detection |
Alarm indication signal (AIS), remote alarm, far-end block error (FEBE), out of frame (OOF), cyclic redundancy check (CRC) multiframe OOF, signaling multiframe OOF, frame errors, CRC errors, Loss of network signal (red alarm), loss of network frame, receive (blue alarm) (AIS) from network, receive (yellow) from network Performance Reports / Error Counters CRC, errored seconds, burst errored seconds, severely errored seconds, Ft and Fs framing errors for SF framing, FPS framing errors for ESF framing, 24-hour history stored in 15-minute increments |
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LED Indicators Data |
Carrier detect (CD) Loopback (LP) Alarm (AL) Voice DSP processing status |
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DSU/CSU |
Selectable DSX-1 cable length in increments from 0 to 655 ft in DSU mode Selectable DS1 CSU line build-out: 0, -7.5, -15, and -22.5 dB Selectable DS1 CSU receiver gain: 26 or 36 dB |
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Physical Interface Standards |
T1 ANSI, ATT T1.1, ANSI T1.403 |
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Environmental |
Operating temperature: 0 to 40°C (32 to 104°F) Storage temperature: -25 to 70°C (-13 to 158°F) Relative humidity: 5 to 85% noncondensing operating; 5 to 95% noncondensing, storage |
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MTBF |
NM-HDV-1T1-24E; 381,087 to 467,253 hours NM-HDV-2T1-48; 366,394 to 445,354 hours |
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2600 Chassis Network Module slot |
3620 Chassis Network Module slots |
3640 Chassis Network Module slots |
3660 Chassis Network Module slots | |
|---|---|---|---|---|
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Maximum Number of T1 Voice Ports Supported (max. number of voice channels supported) |
Two T1 (48 voice channels) |
Two T1 (48 voice channels) |
Five T1 (120 voice channels) |
Twelve T1 (288 voice channels) |
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Description |
Product Number |
|---|---|
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Single-port, 24-channel T1 voice/fax Network Module (supports 24 channels of medium complexity VoCoders: G.729a/b, G.726, G.711 and fax or 12 channels of G.726, G.729, G.723.1, G.728, G.729a/b, G.711 and fax. This product package consists of one NM-HDV, two PVDM-12, and one VWIC-1MFT-T1) |
NM-HDV-1T1-24(=) |
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Single-port, enhanced 24-channel T1 voice/fax Network Module (supports 24 channels of high and medium complexity VoCoders: G.729a/b, G.726, G.729, G.728, G.723.1, G.711 and fax. This product package consists of one NM-HDV, four PVDM-12, and one VWIC-1MFT-T1) |
NM-HDV-1T1-24E(=) |
|
Dual-port, 48-channel T1 voice/fax Network Module (supports 48 channels of medium complexity VoCoders: G.729a/b, G.726, G.711 and fax or 24 channels of G726, G729, G723.1, G.728, G729a/b, G711 and fax. This product package consists of one NM-HDV, four PVDM-12, and one VWIC-2MFT-T1-DI) Supports add/drop multiplexing (drop and insert) |
NM-HDV-2T1-48(=) |
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Single-port, 30-channel E1 voice/fax Network Module (supports 30 channels of medium complexity VoCoders: G.729a/b, G.726, G.711 and fax or 18 channels of G.726, G.729, G.723.1, G.728, G.729a/b, G.711 and fax. This product package consists of one NM-HDV, three PVDM-12, and one VWIC-1MFT-E1) |
NM-HDV-1E1-30(=)1 |
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Single-port, enhanced 30-channel E1 voice/fax Network Module (supports 30 channels of high and medium complexity VoCoders: G.729a/b, G.726, G.729, G.728, G.723.1, G.711 and fax. This product package consists of one NM-HDV, five PVDM-12, and one VWIC-1MFT-E1) |
NM-HDV-1E1-30E(=)1 |
|
Dual-port, 60-channel E1 voice/fax Network Module (supports 60 channels of medium complexity VoCoders: G.729a/b, G.726, G.711 and fax or 30 channels of G726, G729, G723.1, G.728, G729a/b, G711 and fax. This product package consists of one NM-HDV, five PVDM-12, and one VWIC-2MFT-E1-DI) Supports add/drop multiplexing (drop and insert) |
NM-HDV-2E1-60(=)1 |
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High Density Voice/Fax Network Module Spare |
NM-HDV= |
|
12-Channel Packet Voice DSP Module Upgrade |
PVDM-12= |
|
1-Port RJ-48 Multiflex Trunk - T1 |
VWIC-1MFT-T1(=) |
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2-Port RJ-48 Multiflex Trunk - T1 |
VWIC-2MFT-T1(=) |
|
2-Port RJ-48 Multiflex Trunk - T1 with Drop & Insert support |
VWIC-2MFT-T1-DI(=) |
|
1-Port RJ-48 Multiflex Trunk - E1 |
VWIC-1MFT-E1(=) |
|
2-Port RJ-48 Multiflex Trunk - E1 |
VWIC-2MFT-E1(=) |
|
2-Port RJ-48 Multiflex Trunk - E1 with Drop & Insert support |
VWIC-2MFT-E1-DI(=) |
1. E1 voice is planned for availability in December 1999.