1) Broadband internet, such as DSL or cable, is required for optimal VoIP phone service because VoIP relies on a consistent, high-speed data connection. 2) Broadband is a faster internet connection than dial-up, allowing for quicker loading of web pages and ability to make VoIP calls by sending and receiving data at higher speeds. 3) The main types of broadband are DSL (delivered over phone lines), cable (delivered along with cable TV), and satellite (for rural areas not served by other options).