Hi,
I have an SIP trunk with PSTN.
We use different phones such as Mitel 6940, 5320e, 5312 and 5505-Sip.
All of them act finely on incoming and outgoing calls.
But also, we have some 6863i sip phones. In outgoing calls we haven't had any problems. But incoming calls make me a little bit confuse.
Here is the problem: when someone from an analogue line calls the extension 801 (for instance) using DID 49787801 I can't hear the voice of caller side but they can hear me. Then I put them on hold and release it, then they can hear me as well.
But if the caller calls me with a mobile phone, we can hear each other without any problem.
So, what could be the reason? should I change any item in Sip Device Capabilities? or in sip peer profile?
Please let me know if you have any thoughts
I also have WireShark packets on MBG for those who may concern.
Thank you all in advance
Cheers.
