Imagine the Internet as a vast network of roads and highways. What Is the Session Initiation Protocol (SIP)? We’ll explain what SIP trunking is, why you need it, and the primary considerations that you should factor in when deciding on a provider. While this service is generally included with “per-user” licenses for cloud-based phone systems, if you have an on-premise system you’ll most likely need a SIP provider to connect calls with it.
SIP trunking is a network service that allows businesses to connect VoIP phone systems to the traditional phone network.