I have a home office protected with a WatchGuard x5. The trouble in my neighborhood is the Verizon Cellphone service is really lame; it's a "limited service area" they tell me. Anyway, the remedy was to sell me a "Network Extender" ($250) that interfaces my Blackberry Storm to Verizon via my Internet (Comcast broadband) connection.
I connected the Network Extender to the Trusted network on the X5. Now, problem is that my QOS varies enough that some calls sound little better than the lame connection to the closest cell tower (sounds like the other person is under water). Verizon tech support thinks that optimizing my firewall for VOIP would resolve the problem
Can someone here hemp me to understand how to most quickly do this?