Fanvil i64 - Call quality issues

[Jake187]

I'm experiencing an issue where call audio from my Fanvil i64 to internal extensions is scrambled and choppy. This is only when the call is made from the i64 to a ring group or extension. Specifically audio from the i64. Audio from the recipient of the call can be heard clearly through the i64 loudspeaker.

If you call the i64's extension the audio is clear both ways and works fine.

My 3CX server is hosted locally on the same LAN. Recipient handset is an X3SP and also the 3CX app on iPhone both displaying the same issue.

Any ideas?

 

[NicholasP_3CX]

Do a capture on the device and the PBX. See what codecs are being negotiated, and see the audio streams between the i64 and the PBX.

 

[Jake187]

Do a capture on the device and the PBX. See what codecs are being negotiated, and see the audio streams between the i64 and the PBX.

Sorry could you clarify how I do that?

 

[Jake187]

Wireshark?

 

[Jake187]

Hello?

 

[NicholasP_3CX]

Yes, a wireshark capture on the device and on the 3CX server will allow you to see the audio quality, as well as the codecs which have been negotiated.

https://www.3cx.com/docs/capture-network-traffic/