“VoIP” stands for “Voice Over Internet Protocol,” meaning that it relates only to voice (telephone) calls made over the Internet. Though SIP and VoIP are both communication protocols that enable Internet-based voice calling, they’re not exactly the same. SIP Trunking is what provides premise-based PBX systems with VoIP connectivity, so businesses can leverage their existing phone system and compatible hardware to communicate over the Internet instead of over copper wires. PBX systems can be hosted (cloud-based, managed by the provider) or on-premise (phone system hardware is physically located within the office space/building of the business using it.) This way, businesses avoid paying phone companies a premium price for additional phone lines. SIP Trunking works by providing existing IP PBX (Private Branch Exchange) systems with advanced cloud-based VoIP communications, effectively eliminating the need for landlines.Īn IP PBX is any SIP-compatible PBX phone system.īriefly, a PBX system is an internal business phone network allowing businesses to essentially run their own private, company-wide phone system.
“SIP” stands for “Session Initiation Protocol,” meaning that SIP Trunks initiate a virtual communication session over an existing Internet Protocol (IP) network.
SIP Trunking, however, uses the Internet to virtually connect to the PSTN, digitally transmitting data over existing IP networks.Įach SIP Trunk is essentially the virtual equivalent of one traditional phone line – but SIP Trunking allows for much more than just VoIP voice calling.Ī single SIP Trunk gives users access to multiple communication channels like voice calling, SMS texting, instant chat messaging, and even video conferencing all on the same virtual phone line. Though it might seem complicated, the way SIP works is really all in its name. Plain Old Telephone Service (POTS) relies on copper wiring – a physical connection to the circuit-powered PSTN – to make and receive telephone calls. Put simply: SIP trunking is what gives standard, premise-based business phone systems access to the advanced features and benefits of VoIP. SIP Trunking is an application layer protocol that creates a virtual connection between the traditional Public Switched Telephone Network (PSTN) and cloud-based VoIP communications.
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How To Get Started With A SIP Trunking Provider.
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