Thanks Moy, just wondering if you have patched up latest freeswitch with these changes done for the SBC product?

Well, my requirement is to send recorded files to a recording server in a SIPREC compliant way - it can be a single mixed stream at this point in time. In order to send out an INVITE which is SIPREC compliant, I have been able to make a few changes to the source to add a sip.src feature tag to the CONTACT header, but was able to re-use the existing freeswitch sip options for most of the other requirements such as using media_audio_mode, sip_h_Require, sip_append_audio_sdp and sip_mp_application/rs-metadata for the metadata xml.

I am yet to test this INVITE against a recording server though - do you suggest any open source servers?

On Thu, Mar 13, 2014 at 7:33 AM, Moises Silva <moises.silva@gmail.com> wrote:

On Tue, Mar 11, 2014 at 12:26 AM, Siri MM <sirimmfs@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@sangoma.com

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

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