[OpenSIPS-Users] RTP Proxy and Re-Invites

[Ali Pey]

Thank you Jeff.

Don't I need to do unforce before doing a new offer? Why?

Regards,
Ali Pey


On Thu, Nov 13, 2014 at 8:30 PM, Jeff Pyle <jpyle at fidelityvoice.com> wrote:

> Ali,
>
> This is what I use within loose_route() to handle rtpproxy.  In my
> particular case I'm bridging between two interfaces.
>
>
> if (has_body("application/sdp"))  {
>          # Begin rtp session update gyrations
>          if (method == "INVITE") {
>                  # INVITE w/ SDP, so early neg
>                  # This is offer, reply is answer
>                  rtpproxy_offer("frocl");
>                  t_on_reply("1");
>          } else if (method == "ACK") {
>                  # ACK w/ SDP, so late neg (done now)
>                  # This is answer
>                  rtpproxy_answer("frocl");
>          }
>  } else {
>          if (method == "INVITE") {
>                  # INVITE w/o SDP, so late neg
>                  # This is nothing, reply is offer, ACK is answer (~5
> lines up)
>                  t_on_reply("2");
>          } else {
>                  t_on_reply("1");
>          }
>  }
>
>
>
> And then:
>
>
> onreply_route[1] {      # Manage content as necessary - early negotiation
>         if (has_body("application/sdp")) {
>                 if ($DLG_status) {      # Update
>                         rtpproxy_answer("frocl");
>                 } else {                # New
>                         rtpproxy_answer("froc");
>                 }
>         }
> }
>
>
> onreply_route[2] {      # Manage content as necessary - late negotiation -
> update
>         if (has_body("application/sdp")) {
>                 rtpproxy_offer("frocl");
>         }
> }
>
>
>
>
> This does not handle rejected reinvites.  I don't know how to solve that
> one.  Otherwise, it works well, although in some spots it may be overkill.
>
>
> - Jeff
>
>
>
> On Thu, Nov 13, 2014 at 5:13 PM, Ali Pey <alipey at gmail.com> wrote:
>
>> Hello,
>>
>> What's the best way of handling rtpproxy with re-invites?
>>
>> Should I do unforce and then offer/answer? What if the re-invite gets
>> rejected?
>>
>> Any help appreciated.
>>
>> Thanks,
>> Ali Pey
>>
>>
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