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SIP is simply a means of using Voice over IP (VoIP) over multiple trunks with the SIP protocol. It helps companies gain great efficiencies from the trunks they get from carriers, reduces calling cost to a great extent and you can turn all calls to local calls.


Since calls travel over the Internet, or through the VoIP phone system to a termination point, the charges on long distance calls are reduced. SIP trunking also reduces the costs on separate voice and data connections and increases the benefits for communication systems using both voice and data together.

Essentially, SIP trunking is the hub of hosted phone systems. Because SIP trunking is an IP-based telephony service, businesses get number flexibility, which provides a whole host of other added benefits that can solve real business issues.  SIP trunking also provides business continuity and is resilient.

Hosted phone system provider BroadConnect highlighted additional benefits if SIP, citing its ability to provide business continuity in times of disaster recovery and failover. Because SIP trunking allows companies to extend a VoIP connection beyond their firewall without the need for an IP-PSTN gateway, all that is required to stay up and running is a simple Internet connection from a provider.

Unlike in traditional telephony, where bundles of physical wires were once delivered from the service provider to a business, SIP trunking allows a company to replace these traditional fixed PSTN lines with PSTN connectivity via a SIP trunking service provider on the Internet. SIP trunks can offer significant cost-savings for enterprises, eliminating the need for local PSTN gateways.

SIP trunking also allows for trunk failover and call forwarding, so you can feel confident that, even in the event of a provider outage, your SIP trunk provider has you covered to keep you going.

SIP continues to grow in popularity, as evidenced by Frost & Sullivan’s forecast that the North American VoIP access and SIP trunking services market will expand at an annual growth rate of more than 27 percent through 2016. Given these promising forecasts, it’s time to make SIP trunking the hub of your hosted phone system.


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