[Freeswitch-users] Modifying SDPs for SIPREC

[Moises Silva]

On Tue, Mar 11, 2014 at 12:26 AM, Siri MM <sirimmfs at gmail.com> wrote:

> Hi,
>
> I am trying to come up with a simplified SIPREC compliant client, which
> would playback an existing recorded file to a third party server. It is a
> requirement of SIP RFC that the INVITE message from the SIPREC client has
> SDP attributes such as a=sendonly, a=label and so on. Further  Contact URI
> in the SIP header needs to be updated to include '+sip.src' feature tag,
> "siprec" option tag in the Require header etc.
>
> I was wondering if this is achievable in freeswitch in it's current state?
> Or am I required to come up with my own mod, such as mod_oreka, to send the
> INVITE with the required headers?
>

At Sangoma we did the SIPREC modifications to mod_sofia (e.g even adding a
new file particularly for siprec) for our SBC product.

I can say the modifications to be decently complaint (e.g supporting XML
recording meta data and separate streams) are non-trivial (not just one
tweak here and there)

But I guess it's possible (depending on who you're trying to interop with)
that you could get away with doing less than that.

Moy


*Moises Silva**Manager, Software Engineering*

msilva at sangoma.com

Sangoma Technologies

100 Renfrew Drive, Suite 100, Markham, ON L3R 9R6 Canada


t.   +1 800 388 2475 (N. America)

t.   +1 905 474 1990 x128

f.   +1 905 474 9223



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