Voice Gurus: I'm going to take a stab on this because I just went through some of this myself (with 2610s but hey.... same deal)... feel free to point out my mistakes....
If you are doing an E&M trunk between the two PBXs (with the VoIP link acting as the router), then the dialing information you configure is "local" to those VoIP peers and doesn't affect the actual dial digits that are passed between the two PBXs. So as long as their PBXs have dialing plans that are setup to talk to each other, the digits you use to establish the trunk "calls" between the VoIP peer routers is arbitrary. For instance, here would be configs for each end of a VoIP trunk: Side A -------- controller T1 1/0 framing esf linecode b8zs cablelength short 133 ds0-group 1 timeslots 1-24 type e&m-wink-start ! interface Ethernet0/0 ip address 10.1.1.1 255.255.255.0 full-duplex ! voice-port 1/0:1 output attenuation 3 connection trunk 9999 ! dial-peer cor custom ! dial-peer voice 1 voip destination-pattern 9999 session target ipv4:10.1.2.1 dtmf-relay cisco-rtp codec g729br8 ! dial-peer voice 2 pots destination-pattern 9998 port 1/0:1 Side B -------- controller T1 1/0 framing esf linecode b8zs cablelength short 133 ds0-group 1 timeslots 1-24 type e&m-wink-start ! interface Ethernet0/0 ip address 10.1.2.1 255.255.255.0 full-duplex ! voice-port 1/0:1 output attenuation 3 connection trunk 9998 answer-mode ! dial-peer cor custom ! dial-peer voice 1 voip destination-pattern 9998 session target ipv4:10.1.1.1 dtmf-relay cisco-rtp codec g729br8 ! dial-peer voice 2 pots destination-pattern 9999 port 1/0:1 Basically, on a given router you: 1. Assign the DS0s to a DS0 group 2. Under the Voice port (created when you create the DS0 group), configure 'connection trunk' with "phone number" of the other end (something you make up, not part of the PBX dial-plan) 3. Create a 'voip' dial peer where you give the "phone number" (from step 2) and the IP of the peer (and I suggest using DTMF Relay if you're using compression) 4. Create a second dial peer that is 'pots' that maps the "incoming phone number" to the local voice-port Note: Cisco recommends putting "answer-mode" on one end of the trunk links. Note: Cisco does *not* recommend or support putting all 24 DS0s into a single DS0 group unless you are using IOS 12.2T or higher (some problem with individual DS0s getting "hung"). I have a sample config I created that makes 24 separate DS0 groups each mapped with their own "phone number" and pots peer. If you need I can forward cuz it will sure save alot of typing. HTH, Mike W. "Firesox" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I am in need of a quick help. > I am configuring VOIP between two site over the internet. Each site has > it's own PBX and 2620. > The 2620 has HDV module with T1 interface directly connected the PBX via E&M > winkstart. > The connection between PBX and Router is fine at both sites. > At site 1, they have 5-digit dialing plan and site 2, they have 4-digit dial > plan. > The following config was taken from the site 2 with 4-digit dial plan. > Their extensions are 79xx. The site 1's extensions are 370xx. > The PBXs at both sites seem to be configured correctly with trunk-group and > all other neccessary configs. > My question here is should I be configuring the voice-port 1/0:1 as a > connection trunk with connection trunk xxxx command? > the router connects to the remote router when the extension from one site to > another is dialed, but it keeps ringing and never seems to ring the actual > extension. > Any help would be appreciate it. > > > controller T1 1/0 > framing esf > > linecode b8zs > > ds0-group 1 timeslots 1-24 type e&m-wink-start > > cas-custom 1 > > ! > > ! > > voice-port 1/0:1 > > operation 4-wire > > ! > > ! > > dial-peer voice 1 pots > > destination-pattern 79.. > > port 1/0:1 > > ! > > dial-peer voice 10 voip > > destination-pattern 370.. > > session target ipv4:x.x.x.x Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47978&t=47976 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
