Nortel Meridian VOIP integration

[pcanters]

I am having a problem integrating two Nortel Meridians (I believe they are OPT 32) over a T-1 using voip. I have really pulling my hair out now for about a week.

The existing integration included a Micom Marathon with OPX cards to each PBX.

Now that I have my Cisco 2811s in place I am running into some issues. I am fairly certain that the wiring I am using is correct for the VIC2-2e&m card that I have in the router. I am using E&m type 2 immediate signalling on the router and I am also set for 4 wire operation.

I believe all of these wiring/signalling this are correct.

When I set these connections up for plar over the voip T-1, I can dial my access code on the PBX and get back dial tone from the far end PBX. However, after that I can not seem to pass any digits for extesion dialing and the far end phone systems seems to trigger a inter-digit timout and busies out.

It seems to me that all this was working before on a Micom box that had been running for years so I don't see any rason why this wouldn't work on a Ciso implementation.

What could I possibly be missing here ?

Any Nortel/Telephony gurus out there that might have an answer to this ??

Or for that matter, anyone that might have experienced this and found a resolution.

Thanks in Advance,

Pieter

[alan.weadick]

Normally I've used type 5 E&M (type 1a on merridian ) for integration with routers. I did have serious problems getting a Micon Marathon to work - and had to used type 1 or type 2 i think.

Also, make sure you have DTMF relay on all your dialpeers. If you are getting dialtone back and you are using connection plar, that would suggest that your wiring is ok. So, just make sure that dtmf relay is on

[edavila]

At the dial-peer VOIP try to set the same codec (g.729) and enable dtmf-relay h245-alphanumeric

This can cause some DTMF pass to codes to the other VOIP