Hi,
Shortly said, if you do rtpproxy_engage() *before* an async call, the
create session is not triggered ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
https://www.opensips-solutions.com
OpenSIPS Summit 2019
https://www.opensips.org/events/Summit-2019Amsterdam/
On 03/08/2019 04:30 PM, Callum Guy wrote:
Hi OpenSIPs Community,
I wanted to report an issue I discovered when attempting to use the
rtpproxy module, using the dialog backed rtpproxy_engage() function.
Finding that it was not engaging in certain scenarios I took a closer
look at the activity on the control port and discovered that OpenSIPS
never sent a request to open the session in this scenario.
To help illustrate, here is an example control port sequence of a
properly engaged call:
65098_11 *UR*8.8.8.8c9,8,0,3,101,13 */the-call-id/* 192.168.153.223
10248 */from-tag/*;1
65118_19 *LR*8.8.8.8c8,101 */the-call-id/* 192.168.153.223 10248
*/from-tag/*;1 */to-tag/*;1
In my scenario the *UR* (create session) request was never received.
Without claiming any expertise on the rtpproxy protocol this was
clearly not correct and the *LC* (update session) request could not
locate a session to act on.
Following a fairly lengthy investigation I traced the issue back to my
usage of the async() function where i was issuing the
rtpproxy_engage() request before calling async for another purpose.
The solution was simply to move the rtpproxy_engage() call to after
the async method.
I'm happy that the issue is resolved for my requirements however I
thought I would share the experience to the list in case others found
themselves having a similar issue.
Thanks!
Callum
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