CS1000 7.0 - IP Office 6.0(18) SIP trunking 2

[sommervr]

Hello all:

Just got this IPOffice in the lab a few days ago and have been trying to SIP trunk it to a CS1000 release 7.0 system.

I can't find any documentation on how to do this. I have the IP Office registered correctly on the SPS (NRS) and calls from third party sip clients registered to the IPOffice are completing correctly on UNISTIM clients on the CS1000. The SIP signalling all looks fine however there is no speechpath in either direction.

I don't have any SIP clients on the CS1000 but I might set some up to do interop testing.

I have the IPOffice SIP clients set up for direct media path. When I do I see the ARP request as the SIP client tries to find the far end. Turning off direct media doesn't fix anything.

Complicating matters is that all my test phones are on the other end of a IPSEC VPN tunnel.

I still need to do more local testing. Does anyone know if SIP trunking to a CS1000 actually works and is documented somewhere? Still trying to figure this IPOffice out.

 

[TomMills]

not done it to a cs1000 but this might help.

http://www.tek-tips.com/viewthread.cfm?qid=1529720&page=1

http://www.twitter.com/tem1985

ACSS-SME
fo shizzle ma nizzle.

 

[sommervr]

Thanks. Going through that link now

I think we have the SIP routing ok. The problem is the media path after the call is setup.

Problem is that the CS1000 introduces a SIP Proxy Server into the scenario that you describe in that other thread.

I have to make sure I don't have a codec mismatch or something. I am trying to use g711 20 ms.

 

[sommervr]

Just finished interop testing of IP Office and CS1000. Results are mixed. Outgoing calls from IP Office terminate correctly on UNistim sets and support all basic SIP functionality (Update and Refer).

Calls in the other direction get routed out the SPS to the IP Office on SIP trunks as expected. The problem is that the invite is coming from the Node IP instead of the SPS(NRS) address. The IP office has no idea what to do with a SIP invite coming from the CS1000 node (see below).

I don't think there is any way to hack around this. I think we would need a CS1000 SLG to make this work.

 

[tlpeter]

Perhaps wait one or two weeks.
6.1 has some improvements on the sip part.
And in the trial there has been asked about sip trunks between the ipo and nortel stuff.
The ipo also has proxy settings in 6.1



Homo sapiens non urinat in ventum

honey, i fried the IP Office !!!

Sarcasm, it's only one of the services I offer.