Please help me!! I recently got a voice over IP phone Cisco 7942 series. I setup my router for port forwarding and entered all my ip info for my phone into my router. My phone works to make calls out and I can hear the user but they can't hear me. I have tried EVERYTHING including unhooking everything, re-registering my phone and setting up port forwarding again. I am supposed to work from home using this phone by monday and I need help fast.