488 Not Acceptable Here

[Parks]

Here is a trace from our carrier:

Session 237-1233077718@66.212.26.34, Release Cause (code) = 0402

T Stack Cause = 488, Not Acceptable Here

Start = Tue Jan 27 09:35:18 2009

Answer = NA

Release = Tue Jan 27 09:35:18 2009

Duration = 0

Post Dial Delay = 0

Ring Time = 0

 

Orig TID = 003061, Proc_SIP

ANI = 9515362807, From = 65.90.252.66

DNIS = 8886387810, To = 66.212.26.34

Call Leg ID = SD1io2601-77d00464efbb2926f4d5ad6cd8302e2c-v300gi1

Media IP:UDP = 64.192.8.82:10652

Switched IP:UDP = 66.212.26.34:10544

Codec List = G.711u_64k,G.729,RFC 2833

 

Term TID = 004059, Proc_SIP

ANI = 9515362807, From = 66.212.26.34

DNIS = 8886387810, To = 216.218.236.3

Call Leg ID = 237-1-1233077718@66.212.26.34

Media IP:UDP = 0.0.0.0:0

Switched IP:UDP = 66.212.26.34:10546

Codec List = NA

 

Final Call Indication = F

Orig: Pkt In = 0, Pkt Out = 0, Byte In = 0, Byte Out = 0

Term: Pkt In = 0, Pkt Out = 0, Byte In = 0, Byte Out = 0

 

 

Why would be getting this??? carrier sending traffic to interactive intelligence sip proxy which send to our soft switch.

[Vodia PBX]

That response code usually reports about trouble with the codecs. Typically it means that there is no common codec that both sides can agree upon. However, in the case above, it does include G.711 and I can hardly believe that they don't support that codec. My second guess would be that they expect a certian packet length; however we don't insist on anything and it should be okay. Hard to say what is "not acceptable here".

[pbx support]

I am assuming that the carrier is sending back "488 Not Acceptable here" and not the PBX. If that is the case, they would be in a better situation to tell what is not acceptable - codec, packet length or otherwise. In any case, do you have the PBX log? Generally, the SIP message will contain a ISDN release cause code. That might help us figure out what is wrong.