How it Works
SIP Trunking is a replacement for traditional phone lines such as an analog lines or PRIs, saving customers up to 70% over traditional phone lines.
In a traditional set-up, the phone system looks like the diagram below. The phone network consists of a PBX or key system and provides key calling features. Behind the PBX, the phones are connected to the public switch telephone network (PSTN) via analog lines or PBX lines. Calls are placed from phones to the PSTN via these PRI or analog lines. A separate data or broadband circuit provides a separate connection to the Internet.
With SIP Trunking, traditional phone lines are no longer needed. Instead, voice and data are combined over a single circuit.