Abstract: A wireless communications system includes a radio network facilitating wireless communications with a wireless subscriber unit, a dispatch application server providing dispatch communications services to the subscriber unit via the radio network, and an IP Multimedia Subsystem (IMS) infrastructure including a Proxy-Call Session Control Function (P-CSCF) and a Serving-CSCF (S-CSCF). The P-CSCF notifies the dispatch application server of subscriber unit registration events, allowing the dispatch application server to provide dispatch communications services without initiating a separate registration process. Dispatch communications are routed between the wireless subscriber unit and dispatch application server through the P-CSCF, bypassing the S-CSCF of the IMS infrastructure.

Abstract: A method and computer-readable medium for posting push-to-talk voice messages on a social networking web page of a user are provided. According to the method, a messaging platform receives a push-to-talk voice message that is addressed to a social networking message service from a mobile station of the user. The messaging platform determines whether an association exists between the mobile station and the social networking web page. When the association exists, the push-to-talk voice message is posted on the social networking web page of the user. The user can listen to the PTT voice messages on his or her social networking web page via the internet.

Abstract: An apparatus, method and computer-readable medium for controlling dispatch voice communications between fleets in a network are provided. The apparatus includes a multi-fleet dispatch console configured to receive a request for a dispatch group call including dispatch stations in a plurality of fleets and to establish the dispatch group call based upon the request. The multi-fleet dispatch console has a higher priority than any other dispatch console in the network. According to the method, the multi-fleet dispatch console may also determine whether a requestor of the dispatch group call is authorized to establish the requested dispatch group call and output an authorization denial message, if the requestor is not authorized to establish the dispatch group call. Additionally, the multi-fleet dispatch console may drop unavailable dispatch stations from existing group calls, if a priority of the request exceeds a priority of the existing group calls.

Abstract: A network architecture for underground communication using redundant interconnected communication systems utilizes an aboveground master control station to send a status request message to a belowground gateway. The gateway may then, in turn, broadcast a status request message to a plurality of communication hubs located throughout an underground region using each of a plurality of potentially available communication systems. In the event that one of the communication hubs fails to respond over the then-current communication system, the master control station may switch the current communication system being used to a truly available system.

Abstract: A method and system for providing registration coverage in a telecommunications network is disclosed. In accordance with an embodiment of the method, the method includes determining a registration coverage hole in the telecommunications network, providing a single pilot site in proximity to the registration coverage hole, and broadcasting a single registration channel in a 360 degree pattern by the single pilot site. In accordance with an embodiment of the system of the present invention, the system includes the single pilot site in proximity to the registration coverage hole, where the single pilot site broadcasts the single registration channel in a 360 degree pattern.

Abstract: Systems and methods of call setup and information delivery are provided. Calls can be setup between communication units supported by a local area network and those supported by a wide area network using presence information of either or both of the wide area and local area networks.

Abstract: A system and method for handoff are provided. A mobile station performs a make-before-break handoff of a control channel between a serving and target base station and a break-before-make handoff of a traffic channel between the serving and target base stations. The traffic channel handoff is performed after the control channel handoff has completed.

Abstract: Systems and methods for establishing a push-to-talk (PTT) call are provided. When a group call request that identifies a first and second destination mobile station is received from an originating mobile station, a location of the first destination mobile station is determined. The call is established between the originating mobile station and the first destination mobile station prior to a determination of a location of the second destination mobile station. When the group call involves mobile stations of two different networks, a gateway of the second network sends an acknowledgement message accepting the call to a gateway of the first network and the gateway of the second network receives an acknowledgement message accepting the call from the first destination mobile station. The acknowledgement message is received from the first destination mobile station subsequent to the sending of the acknowledgement message from the second gateway to the first gateway.

Abstract: Systems and methods for providing dispatch call features are provided. The dispatch call features include the ability to maintain multiple simultaneous dispatch calls and the ability to manage multiple dispatch stations. The maintenance of multiple simultaneous dispatch calls feature allows a dispatch station to place a current dispatch call on-hold to either initiate a new dispatch call or to accept an incoming dispatch call. The management of multiple dispatch stations feature allows a number of dispatch stations to be associated with one or more dispatch station identifiers. When a dispatch call is made to one of the dispatch station identifiers, all associated dispatch stations are paged. The first dispatch station to respond to the page is connected to the incoming dispatch call.

Abstract: Systems and methods for dual wireless communication technology communications are provided. A mobile station communicates with two transceivers of a base site, where each transceiver operates according to a different wireless communication technology. The mobile station can communicate uplink and downlink control information with a first transceiver of the base site while also communicating uplink and downlink data with a second transceiver. Alternatively, the mobile station may transmit uplink transmissions only to a first transceiver and only receive downlink transmissions from a second transceiver.

Abstract: Systems and methods for communicating presence information are provided. A communication station establishes a persistent connection with a proxy server and a temporary connection with a presence server. The temporary connection is established independent of the proxy server. The communication station provides and obtains presence information directly from the presence server over the temporary connection. After providing or obtaining information, the communication station terminates the temporary connection, while still maintaining the persistent connection with the proxy server.

Abstract: A system and method for dispatch communications are provided. A dispatch station can use one or more alias addresses for communicating with other dispatch stations. The dispatch station can register with a dispatch network for only one of the alias addresses or a number of the alias addresses.

Abstract: A method and computer-readable medium for dynamically adjusting a multimedia data resolution in a wireless environment is provided. The method includes: determining the access profile of the mobile station; monitoring transmission conditions in the wireless system; transmitting the multimedia data and control signaling to the mobile station with a highest resolution based upon the transmission conditions, wherein the control signaling determines an amount of the multimedia data accessible to the mobile station based upon the access profile of the mobile station; and decreasing a resolution of the multimedia data being transmitted to the mobile station, if the transmission conditions become unacceptable for transmitting the multimedia data at the highest resolution.

Abstract: A method, apparatus, and computer-readable medium for performing asymmetric frequency division duplexing (FDD) are provided. The method includes allocating a first bandwidth for an uplink portion of an FDD data transmission; and allocating a second bandwidth for a downlink portion of the FDD data transmission; wherein the first bandwidth and the second bandwidth have different sizes.

Abstract: Methods for decommissioning wireless transmission sites include calculating coverage radii for wireless transmission stations, and representing the wireless transmission stations as a two-dimensional grid. In one embodiment, the virtual cells that comprise the grid having a virtual cell size that is based on the coverage radii. Virtual grid cells having excess wireless transmission stations are identified. Particular excess wireless transmissions stations are then selected for decommissioning based on a predetermined factor.

Abstract: Methods and apparatus for congestion mitigation in wireless communication networks are provided. The congestion mitigation can include assignment of a new user class, a mobile station identifier, a mobile station identifier and a reserved traffic channel and/or an alternative access channel in another wireless communication network. These congestion mitigation techniques can be employed for selected mobile stations when an activity on an access channel is above a threshold level.

Abstract: A method and system for providing presence information related to a communications network is provided. A first presence information message is received from a first network element of the communications network at a presence aggregator of the communications network, where the first network element utilizes a first communications protocol. A second presence information message is received from a second network element of the communications network at the presence aggregator, where the second network element utilizes a second communications protocol. The presence aggregator translates the first and second presence information messages into a standardized protocol and sends the translated first and second presence information messages to a presence server coupled to the communications network.

Abstract: A client-based solution for seamless access to applications across networks is agnostic to the inter-network mix of application architectures with or without IMS. In one embodiment, the presence of an added layer of intelligence effectively traverses and is agnostic to the various standards layers.

Abstract: A client-based solution for seamless access to applications across networks is agnostic to the inter-network mix of application architectures with or without IMS. In one embodiment, an application client registers in either an integrated mode or a standalone mode based whether an application availability notification is received within a predetermined period of time.

Abstract: System and method for providing a telecommunication transmission from an originating device to a terminating device over a telecommunications network. In one embodiment a bit code may be received from the telecommunication network, such that the bit code is extracted from the telecommunication transmission from the originating device. A directory number associated with the originating source may be received and a predefined message may be determined based at least on the directory number and bit code. The predefined message may be displayed on the terminating device.