SIP trunking is a method of sending voice and other unified communications services over the internet. It works with an IP-enabled PBX (Private Branch eXchange). SIP trunking replaces traditional telephone lines. SIP trunks are basically virtual phone lines that enable users to make and receive phone calls over the internet to anyone in the world with a phone number. SIP trunks utilize a packet switch network, in which voice calls are broken down into digital packets and sent across a network to the final destination.




SIP Trunking Questionnaire 

Client should complete and return the questionnaire attached at SIP Trunk Questionnaire


SIP Trunking over VPN

Should client require SIP trunk over Evolve IP VPN Tunnel, the below spreadsheet should be completed and returned