You may have heard the term "SIP Trunking". SIP is a VoIP signaling protocol which is quickly becoming the de-facto standard for the industry. SIP is a lightweight, transport-independent, text-based protocol.

SIP Trunking is a method commonly used to connect SIP Based PBX systems. SIP Trunking is also a means of connecting SIP User Agents to one another and establish voice sessions over an IP based network. As the name implies, SIP Trunking is poised to challenge legacy TDM (Time Division Multiplexing) and fixed line circuits for the establishment and transmission of voice communications.

As mentioned, SIP Trunking is a useful means of connecting SIP based IP PBX systems to each other. For example, if your business has an office location in New York, and another location in California, each with their own SIP PBX, SIP Trunking can be used to link your PBX systems and route voice traffic between offices. Compared with traditional alternatives, small and midsized businesses can signifigantly reduce startup and ongoing management expenses utilizing SIP Trunking switching to VoIP phone service. In many cases, SIP Trunking eliminates the need for analog gateways that are often costly and require additional management. SIP-trunking eliminates the need for gateways by using software to manage a company's VoIP service, and by utilizing the carrier's already-existing network of gateways.

SIP Trunking is most compelling when both caller and receiver are set up with internet telephony systems, because it allows a call to travel the entire way as a digital signal and bypass the PSTN entirely. SIP Trunking also works well in cases where a call starts out digital and ends up analog, allowing the signal to stay digital until the last leg, and then be converted back to analog, skipping the double-conversion normally associated with VoIP. SIP Trunking offers overall efficiency, improves QoS (Quality of Service), and accelerates overall ROI for SMB users.

In addition to a wide selection of IP PBX solutions, PBXSelect offers SIP Trunking service from the leading network providers in the VoIP industry, including Netlogic, Bandwidth.com and RNK. All of the IP PBX systems we sell support SIP Trunking, and service can be provisioned over an existing broadband data connection such as T1/PRI, DSL, Cable or Fiber. If your business requires voice and data connectivity, PBXSelect can provide a full range of competitively priced services on a national footprint.

To find out more about SIP Trunking and other services from PBXSelect, call us at 877.729.2345 or email Sales@PBXSelect.com A representative will assist you with understanding the service options available to you.