Re: Testing voice calls in OsmoCNI

Vadim Yanitskiy vyanitskiy@sysmocom.de wrote:

The primary goal for me would be making the phone activate its microphone and speaker, so that the associated RTP stream would carry valid Uplink voice frames. I assume sending a CC SETUP message and pressing the green button on the phone would be enough for that. The subsequent Alerting and Connect messages from the MS can simply be ignored for now.

Per the protocol, CONNECT from MS to network needs to be followed by a CONNECT ACK from network to MS. Are you sure that your test phones will turn on their full audio path without that CONNECT ACK?

M~