Abstract: Systems and methods for supporting E911 for VoIP mobile communications are provided. A mobile station formats a call setup message by including particular information in a header portion of the call setup message that is used by the wireless network to select an appropriate PSAP and route the call to the appropriate PSAP.

Abstract: Methods and media are provided for offering telecommunications features to wireless devices through the use of a wireless exchange unit. The wireless exchange unit serves as an access point onto a larger wireless telecommunications network through use of a high-speed internet connection. The wireless exchange unit includes an access point base transceiver station (BTS) and an integrated application server. The integrated application server includes a session proxy, a home application server, and a voice application server. The wireless devices can access features such as, among other things, reduced-digit dialing, call rollover, and alternate message notification. For connections between devices local to the wireless exchange unit, the larger telecommunications network resources need not be utilized, therefore reducing congestion and improving performance.

Abstract: Systems and methods for supporting E911 for VoIP mobile communications are provided. A mobile station formats a call setup message by including particular information in a header portion of the call setup message that is used by the wireless network to select an appropriate PSAP and route the call to the appropriate PSAP.

Abstract: A call system comprising an interface system configured to receive a call request, and a processing system coupled to the interface system and configured operate in a current mode of a plurality of modes, to determine if the call is for an emergency service while in the current mode, if the call is for the emergency service determine a preferred mode for the call from a one of the plurality of modes, and initiate the call in the preferred mode.

Abstract: A communication network for emergency service call handling, the communication network comprising a mobile switching center (MSC) configured to receive an emergency call from a wireless end device and transmit first call signaling indicating a call key for the emergency call and a public safety answering point (PSAP) for the call, and a gateway system configured to receive the first call signaling, process the first call signaling to generate second call signaling indicating the call key and the PSAP, transmit the second call signaling to a routing system, and connect the emergency call from the MSC to the routing system.

Abstract: A communication system comprising an access system configured to provide a plurality of end devices with access to a packet communication network, a first end device of the plurality of end devices configured to transmit a first query to the access system, receive a first response indicating a first identifier for the access system, transmit a registration message indicating the first identifier and a second identifier for the first end device, and transmit a first call request for a call wherein the first call request indicates the second identifier, and a call processing system in communication with the first end device and configured to receive the registration message, store the first identifier in association with the second identifier, receive the first call request, process the second identifier to determine the first identifier stored in association with the second identifier, and transmit a second call request indicating the first identifier.

Abstract: An emergency information system comprises an interface and a processing system. The interface is configured to receive first call signaling for an emergency call from a call processing system wherein the first call signaling indicates a call back number. The processing system is configured to process the first call signaling to determine a destination for the emergency call, generate second call signaling indicating a key and the destination, and generate a database message indicating the key and the call back number. The interface is further configured to transfer the second call signaling to the call processing system and transfer the database message to a database system.