A Good Fit
SIP trunking, an interoperable SIP-based VoIP connection established between a carrier's voice equipment and a customer's IP PBX, held appeal for our company because of its price, specifically the fixed communication costs available through unlimited voice plans. SIP long-distance costs an average of 50 percent less than conventional long-distance service.
And once a SIP trunking system is set up, adding lines is as simple as asking the VSP for more simultaneous lines to be enabled. If your Internet connection has enough bandwidth, no additional hardware or software modifications are necessary.
Finally, adding a branch office to the SIP trunk is easy. All you need is an IP PBX for the new office, along with a broadband Internet connection. Both main and branch offices can use the same VSP. And you can "peer" branch offices together using SIP, making interoffice communication completely free.
Other benefits of SIP trunking include presence awareness between companies; the potential for improved voice quality; and integrated voice, video and IM between offices.
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