On Fri, Jul 3, 2009 at 8:30 AM, Gabor Paller<[email protected]> wrote:
> Hi,
>
>
>
> We have a SipX installation and we have connected it to a sip trunk.
> Everything works very well but SipX responds with an error response to the
> OPTIONS messages sent by the trunk operator. The following messages were
> captured in promiscuous mode, so even messages inside the SipX server would
> be visible but there are none. It seems that SipXproxy responds 406 by
> itself. Why?
>

An out of dialog OPTIONS is supposed to return the codecs supported by
the User Agent. Since SipxBridge does not support any codecs as such (
unlike a phone,  it is a B2BUA ), it returns NOT SUPPORTED.




>
>
> 13:19:14.688561 IP (tos 0x0, ttl  45, id 55349, offset 0, flags [none],
> proto: U
>
> DP (17), length: 419) sip.phonzo.com.sip > sipxecs.onrelay.local.5080: SIP,
> leng
>
> th: 391
>
>         OPTIONS sip:[email protected]:5080;transport=udp SIP/2.0
>
>         Via: SIP/2.0/UDP
> 83.233.248.50;branch=z9hG4bKce4f.2c9159f200000000000000
>
> 0000000000.0
>
>         To: sip:[email protected]:5080;transport=udp
>
>         From: sip:registrar;tag=f2b288873565037edb8043d17bf59e17-83aa
>
>         CSeq: 10 OPTIONS
>
>         Call-ID: [email protected]
>
>         User-Agent: Sip EXpress router (0.9.6 (i386/freebsd))
>
>         Max-Forwards: 70
>
>
>
> 13:19:14.692592 IP (tos 0x0, ttl  64, id 0, offset 0, flags [DF], proto: UDP
> (17
>
> ), length: 386) sipxecs.onrelay.local.5080 > sip.phonzo.com.sip: SIP,
> length: 35
>
> 8
>
>         SIP/2.0 406 Not acceptable
>
>         Via: SIP/2.0/UDP
> 83.233.248.50;branch=z9hG4bKce4f.2c9159f200000000000000
>
> 0000000000.0
>
>         To: <sip:[email protected]:5080>;transport=udp
>
>         From: <sip:registrar>;tag=f2b288873565037edb8043d17bf59e17-83aa
>
>         CSeq: 10 OPTIONS
>
>         Call-ID: [email protected]
>
>         Server: sipXecs/4.0.1 sipXecs/sipxbridge (Linux)
>
>         Content-Length: 0
>
>
>
> Gabor Paller, Software Architect
> OnRelay
>
>
>
> Elizabeth House | 39 York Road, London SE1 7NQ, UK | +44 (0) 207 902 8151 |
> [email protected] | www.onrelay.com
>
>
>
> OnRelay in the News:
>
> BT Trials OnRelay FMC Solution
>
> http://www.computing.co.uk/vnunet/news/2239084/bt-trial-fixed-mobile
>
>
>
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-- 
M. Ranganathan
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