I have a customer with 4 phones and whenever they transfer an inbound call they get one way audio.
if they extension dial each other and transfer, it works fine.
All inbound and outbound calls work.
They just can't transfer the inbound call.
Was hoping the forums might have some ideas as to why this would happen.
I've checked all NAT settings and even messed with the jitter on the phones with no luck.
These same 4 phones worked fine on our old hosted system which is also built on asterisk, so I'm kinda stumped at the moment.