N-channel MOSFETs suit rugged VoIP apps

What is a MOSFET?
Metal Oxide Semiconductor Field Effect Transistor, or simply MOSFET, is the most commonly used field effect transistor for both analog and digital circuits. It is composed of two channels: n-type or p-type semiconductor materials, accordingly referred to as NMOSFET and PMOSFET.

What is VoIP?
Stands for Voice-Over-Internet Protocol. A telephone service that uses the Internet as a global telephone network.

What is broadband?
Broadband refers to Internet access via cable and DSL that is 400x faster than dial-up. Entails higher-speed connection.