I have been playing with linphone on three machines on an internal asterisk network and have discovered some strange behaviour.
Machine A - PC running Linux (12.04 kernel) and linphone 3.3.2
Machine B - HTC Desire HD running Android 2.3.7 (Cyanogenmod) and linphone 2.1.2
Machine C - Motorola Xoom 2 running Android 4.0.4 and linphone 2.1.2
Machine X - PC server running Linux and asterisk 1.2.17 - yes, it's old but it works
All machines have materially identical SIP configs and all machines register to X with fixed ports (5060) with no problem.
When A dials B a fully functioning bridged connection is established via X and sound passes both ways.
When A dials C a connection is established via X but there is no RTP stream from X to C (there is upload packets from C to X) though asterisk reports that the connection has been bridged. However, as A is in the process of dialling C, so C sends a few short UDP packets from port 7078 and port 9078 to 91.121.209.194 port 3478. That IP address comes up as
ovn.net based in France. Machine B does not exhibit this behaviour. Seems a bit sus to me.
Anyone got a clue WTF.
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Howard.
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When you want a computer system that works, just choose Linux;
When you want a computer system that works, just, choose Microsoft.