I’m testing the implementation of Zulu Mobile on Android. It works as expected except for one scenario. I only have one-way audio for inbound calls.
Whether a call is coming from an internal extension or an outside line, if a call comes into the Zulu mobile extension and is picked up on Zulu mobile the Zulu mobile user can hear the caller but the caller can not hear the Zulu mobile user. So, there is no outbound audio only on inbound calls. I have perfect two-way audio for all outbound calls.
I have port 8002 open in my router and I’ve tried disabling the FreePBX Firewall.
I’m not sure if this has anything to do with it, but I get this error in my asterisk log on both inbound and outbound calls
[2020-01-14 16:59:13] ERROR: pjproject: <?>: icess0x7eff1c067588 …Error sending STUN request: Network is unreachable
Zulu Mobile 18.104.22.1680
Any idea how to fix this?