With improved Broadband service Sip Trunking has become a real alternative to Traditional telephone lines such as PSTN and ISDN Trunks. The main advantage is of reducing your call charges and fixed line rental.
Over the past few years, the telecommunications industry has standardized on SIP as the protocol of choice for phone calls on the data network. SIP, which stands for “Session Initiation Protocol”, is the technology used for establishing a voice communication session on a data network (for example over the Internet). A SIP “session” might be a regular VoIP phone call between two participants or a multi-party conference call.