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CHICAGO--Nokia this week named its first commercial contract for a converged network based on IP multimedia subsystem technology, announcing an agreement with Finnish MVNO Saunalahti for specific IMS elements that will bridge wireline, GSM and Wi-Fi networks.

Nokia will supply Saunalahti with its MSC Server Solution, a 3GPP Release 4 mobile switching center that centralizes the call control of the network in the core while distributing switching functions to the edge, as well as Nokia’s Unlicensed Mobile Access solution, which allows GSM calls to tunnel over a Wi-Fi IP networks. Of the specific IMS elements, Nokia will deploy its Telecommunications Application Server, a SIP-based server off of which Saunalahti can launch VoIP applications and its Authentication Server, which combines all customer information and authentication functions on a single server.

Nokia has deployed IMS elements to other carriers in the past. Telecom Italia Mobile (TIM) is using Nokia software and infrastructure to launch its video communications service, and Chunghwa Telecom has launched Nokia’s push-to-talk over cellular (PoC) solution over an IMS application server. But the Saunalahti contract is the first announced convergence contract under Nokia’s belt.