Voicemail is one of the value added services that is offered by Independent Telephone Companies to their residential and business customers. A typical rural phone company has few thousand subscribers. These subscribers may be spread across multiple switches. In order to offer voicemail service, the phone company typically has to deploy a voicemail system per each switch that they have. So if phone company has four switches they typically end up having four voicemail systems. Consequently the phone company ends up with unused capacity on each voicemail system that they deploy. XOP Networks Voicemail System (Voicemail application running on the Universal Service Node platform) allows use of fractional T1/E1s. The objective is to share the T1/E1 span of the Voicemail system between multiple switches. Using this approach, a phone company can use one XOP Networks voicemail system and serve the needs of voicemail subscribers that are connected to different switches. In addition to the fractional T1/E1, the XOP USN also supports SIP Trunking. This further allows the phone companies to migrate their voicemail subscribers to the next generation pack network as phone companies replace their circuit switched central office switches with packet based soft switches. A white paper is available on XOP Networks web site that explains the value proposition of the XOP Voicemail solution.

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