A Session Initiation Protocol (SIP) trunk is a digital connection between a Non-public Department Alternate (PBX) and a Voice over Web Protocol (VoIP) supplier. It permits companies to make and obtain cellphone calls over the web as a substitute of utilizing conventional cellphone traces. SIP trunks are sometimes utilized by companies which have a number of areas or staff who work remotely.
SIP trunks supply an a variety of benefits over conventional cellphone traces, together with decrease prices, elevated flexibility, and improved name high quality. SIP trunks are additionally extra scalable than conventional cellphone traces, making them excellent for companies which can be rising or anticipate to develop sooner or later.
