Session Initiation Protocol (SIP) is a flexible protocol used in VoIP platforms to initiate and manage call sessions. SIP is considered a call initiation protocol, but it can do much more than initiate voice calls. SIP also has enhanced functions that make it powerful throughout communications environments.
SIP technology also enables SIP trunking, a service that allows on-premise PBX networks to connect to VoIP services for outbound calls rather than being restricted to traditional telephony networks.
Read on to learn more about SIP and how it enables essential functions for VoIP communications.