What is SIP trunking?
SIP Trunking provides a business phone system access to the public phone system (PSTN). SIP Trunks allow business to use their existing business phone system rather than forklifting it for a completely VoIP based solution. Rather than using traditional phone lines physically delivered by the local phone company, a device called a VoIP gateway is connected to the PBXs trunk port and to the public internet. This allows the existing PBX to be connected to a SIP service provider (like IPComms) where phone services (long distance, direct dial numbers, toll free, etc.) are delivered at cost that is significantly less than traditional phone services.