SIP Trunk

[urutaugg]

Hi all, hope you're doing well.

I'm following the OXE System Manual: Public and Private Networks, chapter 2 (8AL91049ENAC) and in my testbed I've 3 PBX connected all of them through SIP Trunk, one of these PBX is an Alcatel OXE R101.0
The only problem that i have, is when I call from the PBX1 to the OXE. The OXE reply with and 503-Service Unavailable.
The OXE has the 192.168.115.61, the PBX1 192.168.115.18 and PBX2 192.168.115.92.
I will attach a trace made from the OXE. The PBX2 works well in both sent.
Another thing, when i call from PBX1 to the OXE, in the console i see the message:
"Date & time" 000001MI019/00/004 I=3:4099=B channel choice error No 0 link 1 out 1
Which could be the problem that the OXE is rejecting the calls from PBX1??
The config of SIP Ext Gateway are the similar.

Many thanks for your help, regards

[alex]

Run "motortrace 3; traced" on OXE side, may be it will shed some light

[haroun]

it's cleary a loop
have a look to the invite from 192.126.115.18 -----> the invite is from 343@oxe ip:192.168.115.61 instead of 343@192.168.115.18

loop.png