[Serusers] Cisco AS 5300 can't send BYE for SER... It's bug?

Michal Matyska michal at iptel.org
Wed Feb 7 09:51:34 CET 2007


Hi,

rport missing is no problem at all, default 5060 is then used.
The branch=0 in the ACK might be the problem (if Cisco does not match it
with the INVITE (but then it should retransmit the 200 OK reply)).

You can try add syn_branch=0 to the ser.cfg to have the branch id
calculated for ACKs too.

Michal

On Wed, 2007-02-07 at 13:02 +0900, Sahria Hao wrote:
> I got an additional SIP message log from my 5300.
> 
> Scenario:
> 
>   [UA] => [Asterisk] => [SER] => [CISCO AS5300] => [PSTN]
> 
> [UA] "12"
> [Asterisk] 0355558888 at MY.ASTERISK.IP.ADDRESS
> [SER] MY.SER.IP.ADDRESS 
> [CISCO AS5300] MY.AS5300.IP.ADDRESS
> [PSTN] T1 Line
> 
> And maybe I found little bad Via header in
> ACK message from Asterisk (via SER) to AS5300.
> 
>   Feb  7 03:22:34.401: Received: 
>   ACK sip:056708077771111 at MY.AS5300.IP.ADDRESS:5060 SIP/2.0
>   Record-Route: <sip:MY.SER.IP.ADDRESS;ftag=as2ad98fe4;lr>
>   Via: SIP/2.0/UDP MY.SER.IP.ADDRESS;branch=0
>   Via: SIP/2.0/UDP
> MY.ASTERISK.IP.ADDRESS:5060;branch=z9hG4bK0a0daaf9;rport=5060
>   ...
> 
> Why Via header looks like no branch value and port value...?
> And all SIP messages have no Route header.
> 
> I attached AS5300 SIP message log (see below).
> 
> Any ideas?
> 
> Sahria





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