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Cisco 3640 PBX Gateway - E1 PRI, no voice ports


I have a Cisco 3640 and would like to connect it as a ISDN/PRI gateway to MD110 PBX. According to Cisco VOIp gateway configuration guide: (

) I should be able to use Channelized E1 module in order to interface with the MD110 PBX. My configuration, IOS and hardware configuration match or exceed the guide. However no voice port "voice-port 1/0:15" is created and consequently I can not configure a dial-peer ("dial-peer 7", interfacing with PBX). Voice ports 3/0/0 – 3/1/1 are created as expected (FXS and FXO cards) My hardware/software is as follows: 1 NM-1FE2CE1B



IOS v.12.2(2)T

Am I missing something or I should forget about the NM-1FE2CE1B module and go straight to NM-HDV type of solution?



Show version output:

Router#sh ver

Cisco Internetwork Operating System Software

IOS (tm) 3600 Software (C3640-JSX-M), Version 12.2(2)T, RELEASE SOFTWARE (fc1) TAC Support:

Copyright (c) 1986-2001 by cisco Systems, Inc.

Compiled Sun 03-Jun-01 00:28 by ccai

Image text-base: 0x600089A8, data-base: 0x616C4000

ROM: System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc


ROM: 3600 Software (C3640-JSX-M), Version 12.2(2)T, RELEASE SOFTWARE


Router uptime is 0 minutes

System returned to ROM by reload

System image file is "flash:c3640-jsx-mz.122-2.T.bin"

cisco 3640 (R4700) processor (revision 0x00) with 59392K/6144K bytes of memory. Processor board ID 07991029 R4700 CPU at 100Mhz, Implementation 33, Rev 1.0 Channelized E1, Version 1.0. Bridging software. X.25 software, Version 3.0.0. SuperLAT software (copyright 1990 by Meridian Technology Corp). TN3270 Emulation software. Primary Rate ISDN software, Version 1.1. 1 Ethernet/IEEE 802.3 interface(s) 1 FastEthernet/IEEE 802.3 interface(s) 32 Serial network interface(s) 2 Channelized E1/PRI port(s) 2 Voice FXO interface(s) 2 Voice FXS interface(s) DRAM configuration is 64 bits wide with parity disabled. 125K bytes of non-volatile configuration memory. 32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

My show running output:

Router#sh run

Building configuration...

Current configuration : 1405 bytes


version 12.2

no parser cache

no service single-slot-reload-enable

service timestamps debug uptime

service timestamps log uptime

no service password-encryption


hostname Router


logging rate-limit console 10 except errors

no logging console

enable secret xxxxxxxx


ip subnet-zero


no ip dhcp-client network-discovery

isdn switch-type primary-net5

call rsvp-sync


controller E1 1/0

clock source internal

pri-group timeslots 1-31


controller E1 1/1


interface Ethernet0/0

ip address



interface Serial0/0

no ip address



interface FastEthernet1/0

no ip address


duplex auto

speed auto


interface Serial1/0:15

no ip address

isdn switch-type primary-net5

isdn overlap-receiving

isdn protocol-emulate network

isdn incoming-voice voice

isdn T203 30000

isdn T310 60000

isdn bchan-number-order ascending

no cdp enable


ip classless

ip http server


snmp-server manager


voice-port 3/0/0


voice-port 3/0/1


voice-port 3/1/0


voice-port 3/1/1


dial-peer cor custom


dial-peer voice 9 pots

destination-pattern 1111

port 3/1/1


dial-peer voice 10 pots

destination-pattern 1112

port 3/1/0


dial-peer voice 7 pots

destination-pattern 7...


prefix 7







line con 0

line aux 0

line vty 0 4

password xxxx






Re: Cisco 3640 PBX Gateway - E1 PRI, no voice ports

The module that you have is not a voice module. You should use a NM-HDV with a VIC-1MFT-E1 or VIC-2MFT-E1 card. The NM-HDV can also take DSP chips for handling calls.

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