What is SIP Trunking?

Connecting an organization’s Public Branch Exchange (PBX) to the public switched telephone network (PTSN) has traditionally been facilitated with TDM trunks. If you don’t know what a TDM trunk is, you don’t need to worry; with more companies moving to VoIP, SIP trunking has become an increasingly popular technology… because who doesn’t like a simpler network architecture and saving money? SIP refers to Session Initiation Protocol. It is the standard, developed in 1990, to set up and terminate VOIP calls and generate a dial tone. A SIP trunk is a broadband Internet link that uses this standard (SIP) to connect a company’s IP-based Public Branch Exchange (PBX). But enough with the acronyms, right? You are interested in the bottom line. Read more to find out how SIP trunking can save you money.