[asterisk-users] No full duplex communication ?

[jonas kellens]

Hey list !

I'm getting the feedback of a customer that a conversation is like half
duplex : when he talks, the other end of the call is no longer heard.

What could be the cause of these drop-outs ?

A call that is coming in from the PSTN is routed through an IVR-system
to the correct internal SIP-phone (Grandstream GXP2020).

Where do I start searching for this problem ?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20090527/9da616a4/attachment.htm