A system and method for providing wireless Internet protocol access is provided. A network entity may be coupled to both a second generation and a third generation network access node. The network entity may intercept a request from a mobile node and determine whether the mobile node desires services from the second or third generation network. The network entity may then establish the proper communication session based on the type of session requested by the mobile node. By employing the network entity, service providers can effectively migrate from the second generation network architecture to the third generation architecture with minimal or no loss of services for users. Also, employing such a network entity enables users to operate a bi-functional mobile node, such as one that requires both second and third generation network access.

 
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> System and method for voice transmission over network protocols

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