Hello all:I have a Cisco 7942G phone running SIP firmware version 8-3-2. I cannot, for the life of me, get the phone to load the latest version of the firmware 9-2-1. I have my environment setup correctly as I was able to load up version 8-3-2 with n...

Hello all:I have a Cisco 7942G IP phone running SIP firmware version SIP42.8-3-2S. I have been trying to get the phone to register to various 3rd party SIP telephony service providers, and I keep running into a wall with NAT issues. In simple terms, ...