The Benefits of SIP Trunking for an Existing PBX System

If you have an existing PBX system but are looking to reduce your telecommunications bill, you may be interested in a service known as SIP trunking. SIP trunking connects a Voice-over-IP (VOIP) telecommunications service directly to an on-premise technology system, thereby granting many organizations the best of both worlds. Here are some advantages.

You Don't Need to Invest in Additional On-Premise Equipment

Your PBX system will connect your internal system to the Internet. This means that unlike with an entirely new VOIP system, you won't need to invest substantially in routers, switches, and handsets. When switching to a VOIP-only system, you would at very least need to invest in new handsets that could connect directly through the Internet. With an SIP trunked system, the old handsets will still connect to the old infrastructure.

You Can Program Your System Both Remotely and On-Premise

One of the principle advantages of VOIP is that it allows for additional and complex programming. Through VOIP, systems can be programmed to automatically direct and redirect calls in virtually any way; you can have calls to a specific number routed to different people depending simply on the time of day or whether other individuals are not available. SIP trunking allows this programming to be handled in addition to any internal controls already in the system.

You Save a Substantial Amount on Utility Costs

One of the major reasons companies are switching from traditional telecommunications systems to VOIP systems is cost. A telephone service is usually many times more expensive than a VOIP system, as telephone technology runs on an entirely different infrastructure. 

You Gain Superior Technology and Reliability

In the past, many people were concerned about switching from telephony to the Internet. Telephone services virtually never go down; this is how landlines can be relied upon in emergency situations. But in the modern era, the Internet has become just as stable as most telephone services, especially in major metropolitan areas. Companies that are truly concerned about the reliability of the Internet can purchase an affordable backup Internet service that can take over in the event that the primary service goes down.

SIP trunking isn't for every organization. Organizations that have not invested much into their PBX may want to go with a VOIP-only system while organizations that rely strongly upon their PBX infrastructure may want to continue on with traditional telecommunications. For most businesses, however, a PBX system is worth looking into—especially when companies that have recently invested in upgrading or maintaining their PBX system.


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