A SIP trunk, also referred to as an IP trunk or SIP trunking, is a digital connection between a non-public department alternate (PBX) and a public switched phone community (PSTN) or different VoIP supplier. It makes use of the Session Initiation Protocol (SIP) to ascertain and handle voice calls over an IP community.
SIP trunks supply an a variety of benefits over conventional TDM trunks, together with decrease prices, better flexibility, and improved name high quality. They’re additionally extra scalable and simpler to handle. In consequence, SIP trunks have gotten more and more fashionable with companies of all sizes.
