[asterisk-dev] chan_datacard and RTCP

[Artem Makhutov]

Hello,

I am writing chan_datacard to be able to use Huawei UMTS datacards as a 
GSM gateway with Asterisk.

Some users have complained that their calls are disconnected after 
exactly 30 seconds.

After some investigation it came out that they were using X-Lite as 
their sofphone and that X-Lite is disconnecting calls after 30 seconds 
if it does not receive RTCP packages in that time.

So the question is how can I get asterisk to send RTCP packets to X-Lite?

Must I add something to chan_datacard to generate RTCP packets or should 
asterisk generate RTCP packets by its own?
I have no clue about RTCP. Can somebody give me some hints at what I 
should look at?

Thanks, Artem

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