Enterprise VoIP Using VoMPLS How VoMPLS helps companies converge their separate voice and data networks to save money.
By: John Shepler
Medium and large enterprises have been converting from traditional telephone and computer connections to VoIP over converged networks. The reasons are higher productivity and lower costs. But what happens when you connect your phones and computer network to the outside world? Do you lose the advantage of your enterprise VoIP technology?
TheReason For Separate Voice and Data Networks
Sadly, for some businesses, this is the case. Everything is efficiently connected over a high performance local area network. That network stops at the edge of the premises. In order to connect with other business locations, both voice and data must be transmitted over common carrier telecom services. This is true for each location. There is one architecture for the internal network and quite a different one for the transport service.
PBX Telephone Network
Typical interfaces include a PBX telephone system that connects to multiple outside telephone lines. These may be individual analog business lines or a digital ISDN PRI trunk line. In either case, the PSTN or Public Switched Telephone Network is used to make calls to both outside phones and the phone systems of the other company locations.
Computer Networking Options
Computer networking is handled with point to point dedicated lines, often set up in a star network with headquarters doing the routing for all locations. This works well, but can be quite expensive when locations are on different coasts or in nearly every state. Add international locations and costs skyrocket.
How MPLS Fits In
What’s a better solution? The latest technology is MPLS networking. An MPLS network is a privately operated “cloud” network that uses a special tag switching system instead of IP routers to manage traffic. MPLS networks offer quality of service mechanisms so that real-time traffic, like voice and video, are unaffected by simultaneous data file transfers. That makes MPLS networks ideally suited to extending converged networks among as many locations as needed.
VoMPLS for Combined Voice and Data Networks
How can this benefit your organization? By interconnecting all of your locations through an MPLS network, you can create a seamless internal voice and data network for telephones and computer connections. Using an MPLS network to carry telephone traffic is known as VoMPLS or Voice over MPLS.
Benefits of VoMPLS
With VoMPLS, all of your internal telephone calls stay off the public phone network and you avoid toll charges. Only when you need to make an outside call do you need to connect to the PSTN. This can be an enormous cost savings compared to your monthly phone bill now. Similarly, the cost of using an MPLS network for file transfers can be considerably less than the cost of all those dedicated lines and the effort it takes to maintain a proprietary network. Plus, any productivity enhancements you’ve achieved by converging your voice and data networks can be shared among your other business locations.
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