[Freeswitch-users] Generate 180/183 with SDP upon receipt of a 180 without SDP

[Michael Collins]

Hi Mick,

What is the call flow in this case? I'm curious to know what call legs
exist and where the 180/183 is and is not happening. FreeSWITCH generally
does all this for you, so I suspect there's a gremlin in the works. Can you
pastebin a console debug log w/ SIP trace? That may give the gang here just
enough information to figure out what's going on.

Thanks,
MC

On Mon, Oct 8, 2012 at 2:26 AM, Mick Stevens <mickstevens at yahoo.com> wrote:

> Hi Folks,
>
> Does anybody know a way I can get FreeSWITCH to generate a 180 or 183 with
> SDP upon receipt of a 180 without SDP?
>
> Unless I'm being stupid (quite possible) I couldn't find an answer to this
> on the wiki, although lots around early media (I don't really want to
> resort to generating ringing for every call, in case the callee is
> genuinely engaged/busy for example).
>
> The context behind my enquiry is that I send traffic to another SIP
> carrier that then hands the traffic off at ISUP. Where the ISUP carrier
> sends back an ACM with a backward call indicator of "subscriber free" the
> carrier sends a 180 without SDP to me/FreeSWITCH assuming that any ringback
> tones will be generated by the SIP user agent (RFC 3398 blah, blah, blah).
>
> Any help much appreciated!
>
> Rgds, Mick
> Tel/SMS. +44(0)7967 594432
> Fax. +44(0)7053 452429
> Email/IM. mickstevens at yahoo.com
> Skype: mick_stevens
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> www.twitter.com/mickstevens
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
http://www.ClueCon.com
http://www.OSTAG.org
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