Time Warner Cable officially selected the Surpass feature servers from Siemens Networks as a key component of its VoIP systems as it expands the reach of the service.

TWC has been powering an IMS trial with Siemens equipment in the MSO’s Herndon, Va. property (see story). TWC is planning its migration path from VoIP to converged services based on the IMS architecture, and has apparently decided the Surpass system will do the trick.

In the short term, in addition to providing call management functionality, the Siemens platform will help Time Warner Cable deliver a growing feature set to TWC’s Digital Phone subscribers. TWC says 1.6 million of its 14.4 million U.S. subscribers take its Digital Phone service.

Siemens’ Surpass hiQ platforms have also been deployed by Cablevision Systems Corp., Shaw Cable in Canada, Multimedios in Mexico, and UPC, Com Hem, Casema and Essent in Europe, among others.