<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hi OpenSIPs Community,<div><br></div><div>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.</div><div><br></div><div>To help illustrate, here is an example control port sequence of a properly engaged call:</div><div><br></div><div>65098_11 <b>UR</b>8.8.8.8c9,8,0,3,101,13 <b><i>the-call-id</i></b> 192.168.153.223 10248 <b><i>from-tag</i></b>;1<br></div><div>65118_19 <b>LR</b>8.8.8.8c8,101 <b><i>the-call-id</i></b> 192.168.153.223 10248 <b><i>from-tag</i></b>;1 <b><i>to-tag</i></b>;1<br></div><div><br></div><div>In my scenario the <b>UR</b> (create session) request was never received. Without claiming any expertise on the rtpproxy protocol this was clearly not correct and the <b>LC</b> (update session) request could not locate a session to act on.</div><div><br></div><div>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.</div><div><br></div><div>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.</div><div><br></div><div>Thanks!</div><div><br></div><div>Callum</div></div></div></div></div>
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