ITG will not pass voice traffic 1

[rstew3]

I have just installed an ITG card in a 61c at a customer site, and the voice traffic is not passing through the DSPs. You can make a call between the two i2004s that I have configured, and everything is fine. When you make a call to a digital set on the switch, or to a call outside the customer's site (my cellphone), the set that you are calling rings, but you cannot hear voice traffic on either end. You can hit number keys on either the digital set, or on the i2004 and hear it on the other set.

When you stat the physical TNs while the call is in progress, it does show a busy state, and when you trac the call in LD 80, it does show the normal data for an ongoing call.

Any suggestions? I could not find any PEPs on Nortel's site.

 

[ipeology]

1. check LAN traffic.
2. check ITG line compression rate (G711, G729 etc.)
3. codec options.... echo....

you may need to play with these settings.

cheers.

 

[rstew3]

Thank you ipeology,

I have checked the codecs, and the compression, etc., before I found that calls going from IP phone to IP phone were working correctly. Since there is only a problem when you try and call a digital station, or an outside line, I thought that I may have the DSPs, or the physical TNs, configured incorrectly. I have gone through the documentation step by step 3 times now, and cannot find anything that I have done wrong. Any help would be appreciated.

 

[SMC1]

rstew3;

I have run into this aswell. Installing wireless ITG does this a ton. Run a ethernet sniffer on the ehternet link. What you should find is the tx and rx packets shuold be the same codec. The phones might be using a defferant codec than the PBX. You can try tweeking the zones in 117.

Ethernet sniffer will comfirm exactly what is going on. to purchase I recommend WillPAckets share ware i would recommend etherreal.

If you are going to work with VoIP an good ethernet sniffer will save your but a bunch.

 

[mikeyb123]

Did you get this working? We are looking to trial this between a couple of sites..

It's not getting any smarter out there. You have to come to terms with stupidity, and make it work for you.

 

[rstew3]

I have not gotten this working yet mikeyb. I have had Nortel on the line for two days now while their engineers look at it as well, and they cannot find a problem with how I have it programmed. They even sent me a new ITG card, and it does not work either. We do have this running at multiple other locations though, and when it works, it works great. We have one location that have it working between two sites connected by frame relay. We have another site that has a couple of people using the phones from home through VPN.

I think this is just a freak switch. I'll keep you guys posted.

 

[mikeyb123]

Cheers, good luck!!

It's not getting any smarter out there. You have to come to terms with stupidity, and make it work for you.