Single sided audio with SPARK when calling using SIP ASTERISK 13+

When I call any phone and or extension from spark, I can hear the callee but they cannot hear me.

does anybody knows why this is happening?? It works well outside of SPARK.

Thanks,

Serge

the sip phone and audio codecs in spark need some major work and updating. There are no active devs for spark right now, so Its likely this will not be fixed.

If you know any java devs that would be interested in helping with spark, please tell them about the need for some help!