A SIP trunk, or Session Initiation Protocol trunk, is a digital telephone line that makes use of the SIP protocol to attach a PBX or IP telephone system to a public switched phone community (PSTN). SIP trunks are sometimes utilized by companies to exchange conventional analog telephone strains, as they provide a number of benefits, together with decrease prices, elevated flexibility, and improved name high quality.
SIP trunks are sometimes less expensive than conventional telephone strains, as they don’t require the usage of bodily copper wires. This could save companies a major sum of money on their month-to-month telephone payments. SIP trunks additionally provide larger flexibility than conventional telephone strains, as they are often simply added or eliminated as wanted. This makes them splendid for companies which can be experiencing speedy development or which have fluctuating name volumes.