i have a 7960 setup in a home office, the home office is connected to the office LAN via a sonicwall vpn tunnel.
the phone picks up the correct call manager and configures the phone lines, speed dials and BLFSD,
when i call the number from my mobile it rings and i can also make outbound calls but there is no audio (both ways) i can see that the RX count stays at 0 and the TX count increases but i cannot hear anything on my mobile
but when i place a call from the 7960 in the home office to a internal directory number in our office the voice quality is excellent and i can hear them and they can hear me.
i don't think this is a vpn tunnel issue as a) the phone would not configure and b) i would not be able to have an internal call and c) i would not be able to make a call to an external number or receive a call from an external number
but i don't know what is causing the issue
can any one help? hopefully it is just a small setting i am missing
oh btw when i connect the same phone in our office all works fine (internal and external)
Is the gateway MGCP or H323? Which interface is the media/control binding applied to? The phone may be able to hit one IP on the router, but if it is being sourced from an interface that you cannot hit, you won't have audio.
Please rate if this helps.