An ITSP (Internet Telephone Service Provider) provides connectivity through the internet to the PSTN (Public Switched Telephone Network) to enable communication with mobile and fixed phones. In this way, SIP trunks can a great cost-saving method for businesses by eliminating the need for local PSTN gateways If you already have an IP-PBX system in your office, take advantage of Convergia?s SIP Trunking service to make all local and long-distance calls. SIP Trunking supports the most popular IP PBXs, including Asterisk, Avaya, Trixbox, FreePBX, PBX in a Flash, Elastix, Switchvox, Fonality, Epygi, PbxnSIP, 3CX, Grandstream 5024 5028, Linksys SPA9000, Talkswitch, Allworx, and Aastra.

SIP trunks can offer significant
COST SAVINGS for your VOIP business phone!

If you already have an IP-PBX system in your office, take advantage of Convergia’s SIP Trunking service to make all local and long-distance calls. SIP Trunking supports the most popular IP PBXs, including Asterisk, Avaya, Trixbox, FreePBX, PBX in a Flash, Elastix, Switchvox, Fonality, Epygi, PbxnSIP, 3CX, Grandstream 5024 5028, Linksys SPA9000, Talkswitch, Allworx, and Aastra.

SIP trunking is a service offered by an ITSP (Internet Telephone Service Provider) that will permit your businesses to have a PBX installed to enable the business not only communicate over IP within the enterprise, but also to use Voice-over-IP (VOIP) outside the enterprise network by using the same connection as the Internet connection.  Read More