Hello,

I´m having some problems with códec negotiation and one way audio .

I take some Sip captures and  I notice that Freeswitch is not inserting fmtp parameters in SDP in his 200OK response. I notice that this is a common behavior.

I really need that FS generates the complete SDP (with fmtp) because some devices only  accept  for example G729 annexb=no.

I tried with the function sip_append_audio_sdp but it only accepts one a=fmtp line.

“ <tr valign=top>

    <th align="left">

        @RFC3264: SDP Offer/Answer Negotiation

    </th>

    <td>

        Generating and processing offers or answers.

    </td>

    <td>

        - "a=fmtp" parameters are not taken into account

          when generating or processing answer

    </td>

</tr>   ”

Regards,

Camila Troncoso | Ingeniero de Desarrollo

RedVoiss |ctroncoso@redvoiss.net

Santiago - Chile | +56 2 2408535

www.redvoiss.net