The whole point of =proxy is to place another outbound call and use the SDP from that outbound call in the answer to the INVITE.
If you don't need that, then you should just use the =true mode.


On Tue, Dec 20, 2016 at 4:39 PM, Sharath Kumar <shakumarsoftware@gmail.com> wrote:
There is no outbound leg. It is just my application answering.(just like a FS client) So I guess I will have to set the inbound leg with the local sdp. I am not sure if I can actually make it out of thin air .ie session id and ports etc ? Is there an API for me to generate the local SDP ? Or Am I completely missing something basic here!

thank you so much!
-Sharath


On Tue, Dec 20, 2016 at 3:20 PM, Anthony Minessale <anthony.minessale@gmail.com> wrote:
What channel type is the outgoing leg?

The inbound leg needs the variable switch_m_sdp set with the SDP of the outbound leg at the time when the outbound leg is answered.
In the case of mod_verto a patch was added today to set that variable.  If you are using something non-standard you will have to set that variable yourself.


On Tue, Dec 20, 2016 at 4:11 PM, Sharath Kumar <shakumarsoftware@gmail.com> wrote:
Hello,

I am using FS as an endpoint. I need some clarification the below scenario -

When I receive an INV w/o SDP and enable-3pcc=proxy, the FS sends out a 18x and then when I answer the call it indicates in the logs that it is sending a 200 OK i.e[3PCC-PROXY, Sent a 200 OK, waiting for ACK] but the call fails with  "SIP/2.0 500 No session set by user".

Should I be setting the local-sdp somewhere from my application? I know this is not a very common usage of FS. I would've tried this with the FS client to confirm the behavior but I don't think it supports 3pcc=pxoxy only 3pcc=true.

Thank you,
Shaks

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