It looks like West is into VoIP for the long haul.

The news came down today that West Interactive Corporation, a wholly owned subsidiary of West Corporation, has selected the Sonus IP Multimedia Subsystems (IMS)-ready architecture as a component of its next generation voice network. West Interactive, which specializes in interactive voice response (IVR) services, is deploying a new VoIP network to cost-effectively increase network capacity and support the development of new revenue-generating services.

Last week West announced that it had purchased Intrado, a Colorado-based company that provides 911 operations support systems services to LECs and wireless telcos in North America.

West Interactive will be using Sonus' solution to support the deployment of a new VoIP network to cost-effectively increase network capacity and support the development of new revenue-generating services. 

West currently provides contact services to a number of Fortune 1000 companies. Sonus'  solution will provide West Corporation with the infrastructure necessary to deliver a full suite of IVR services, such as automated customer acquisition and support applications, while enabling the company to deliver feature rich services to its enterprise customers.