SIP trunking turns long distance calls into local calls. Companies who switch to SIP cut back on their communications costs because voice networks and the internet are combined into one predictable monthly cost.Īnd if you add new locations your team stays connected. With SIP Trunking, you can customize the number of lines for your business, so you pay for only what you need. This means that even if you only use some of your lines, you still pay for all of them. With traditional wire-based services, you have to buy 23 voice channels, even if you only need 12. It’s all the features your business needs minus the high-end price tag. SIP is straightforward in user-experience and rich in functionality. While all SIP supports and can scale to VoIP, not all VoIP uses SIP technology. Most telecom providers offer VoIP and Unified Communications as a Service (UCaaS) solutions. A Unified Communications provider provides SIP Trunking services. SIP protocols control voice, video and messaging applications. It is a protocol used to start, run and end communication sessions in VoIP applications. SIP is one of the specific protocols that enable VoIP.
It includes a group of protocol technologies, of which SIP is an example. VoIP covers any and all phone calls made over the internet. VoIP is not a single solution it’s an overarching umbrella of telecommunications solutions. People often think SIP and VoIP are interchangeable, but VoIP stands for Voice over Internet Protocol. A typical SIP call travels from a device through a PBX, over an internet connection, to a data center switch, to the PSTN, to the person receiving the call. The industry needed something to keep up with the evolving features and call processing functions of the PSTN. In the 1970s, the telecommunications industry developed SIP Trunking. The PSTN is a circuit-switched network and requires a physical connection (i.e., copper wires) between two points to complete a call. How Does SIP Trunking Work?īefore SIP became a popular method of transmitting voice signals, the Public Switched Telephone Network (PSTN) fulfilled all telephone calls since way back in 1875. The IP-PBX is a gatekeeper to the outside world and the SIP trunk is the road leading in. The IP portion of IP-PBX stands for internet protocol meaning the technology uses the internet to travel and send the information. It’s a system that manages internal traffic between an organization’s telephones or other devices like fax machines, modems and credit card terminals. If you’re scratching your head about the term “IP-PBX,” don’t worry. It works with an IP-enabled PBX and replaces traditional telephone lines. Short for Session Initiation Protocol, it’s a method of sending voice and other Unified Communications over the internet. SIP Trunking technology supports your everyday chat, voice and video calls.
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