Maybe it is my general newness to SIP and RTP, but i could not get any better functionality with PBX. Basically, it would seem that we are having a problem with the negotiation between SIP Server and CS1000. This is our current flow... Nortel UA -> CS1000 -> Brekeke -> Our UA I have been told ...

Can we use Brekeke PBX to connect with a Nortel CS1K trunk line?

Does this mean that Brekeke is not passing a 20ms payload to the site PBX in a specific variable? This may explain our issues, since we may be making the site PBX confused. I see from the link supplied that they default to 20ms, but how does the site PBX get informed of that?

I should clarify, we are using Wireshark for captures.

I do have a question, how can i see the physical response of Brekeke to the site PBX showing we are accepting the 20ms PTIME? I can see it in the packet from site PBX to Brekeke, but i do not see it from Brekeke to PBX.

I meant the Nortel PBX. The link supplied shows them what we are trying to prove. We have been having an issue with us sending the 20ms requests, but the Nortel sending us back 10ms and 30ms payloads.

1. Brekeke Product Name and version: 2.4.6.7 2. Java version: v6 update 16 3. OS type and the version: Windows Server 2003 R2 4. UA (phone), gateway or other hardware/software involved: Nortel CS1K 5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/networkpatterns.html ...