I'm in a bit of trouble.
I was brought in on a problem where inbound SIP calls ring in ok, the outside caller hears the inside person but the inside person hears nothing.
In talking with the firewall tech, he says the external IP address is NATing (PATing) 5060 to the 3300.
My question is this: When a call comes into the 3300, the 3300 sets up the call to the phone.
Once the user answers the call the 3300 drops out. So how would the incoming audio hit the phones if FW policies only NAT to the 3300?
Ralph