Abstract: A Push-to-Talk-over Cellular (PoC) implementation for use in a wireless communications network, wherein one or more servers interface to the wireless communications network to perform the PoC call sessions. Both the servers and the mobile units that use the PoC call sessions communicate with each other using SIP/IP (Session Initiation Protocol/Internet Protocol) control messages within the wireless communications network, and one or more of the servers switches RTP/IP (Realtime Transport Protocol/Internet Protocol), RTCP/IP (Realtime Transport Control Protocol/Internet Protocol), or MBCP/IP (Media Burst Control Protocol/Internet Protocol) voice packets for the PoC call sessions between the mobile units across the wireless communications network.

Abstract: An embodiment method includes receiving, by a first push-to-talk (PTT) service hosted on a processor, a session initiation request from a PTT client of a user and identifying, by the first PTT service, a user affinity group of the user. The user is assigned to the user affinity group in accordance with a prediction the user will communicate with first users in the user affinity group more frequently than second users in different user affinity groups. The method further includes determining, by the first PTT service, a PTT call server for the user affinity group. The PTT call server serves the user and the first users belonging to the user affinity group.

Abstract: A system and method for providing advanced voice services in a wireless communications network, and more specifically, a method and framework to achieve a Fully Acknowledged Mode Communication (FAMC) in Push-to-talk-over-Cellular (PoC) is provided. A FAMC call session is a PoC call session that can only be established when all members of a set are available.

Abstract: A system and method for providing advanced voice services in a wireless communications network, and more specifically, a method and framework to achieve a Fully Acknowledged Mode Communication (FAMC) in Push-to-talk-over-Cellular (PoC). A FAMC call session is a PoC call session that can only be established when all members of a set are available.

Abstract: A system and method for providing advanced voice services in a wireless communications network. The system includes at least one server that exchanges messages with mobile units, in order to indicate that a user is neither online or offline, but is temporarily unreachable or unavailable. The user may be temporarily unreachable or unavailable due to connectivity issues with the user's mobile unit in the wireless communications network. Presence information for the user is distributed from the server to watchers, wherein the presence information indicates that the user is offline when the user is temporarily unreachable or unavailable. Various techniques may be implemented to determine how long the user's mobile unit must remain connected to the wireless communications network, before the presence information indicates that the user is online.

Abstract: A Hybrid Push-to-Talk (PTT) function for use in wireless communications networks, such as cellular mobile telephone networks. The cellular mobile telephone network includes a Real-Time Exchange (RTX) that interfaces to at least one Mobile Switching Center (MSC) in the cellular mobile telephone network to provide instant two-way half-duplex voice messaging within a group of users. In the Hybrid PTT function, first or initial talkbursts or volleys are transmitted by the RTX from an originating mobile to terminating mobiles on pre-established Internet Protocol (IP) sessions between the RTX and the mobiles. In addition, circuit channels are established by the RTX with the mobiles through the MSC in parallel with the first talkburst or volley. Thereafter, second or subsequent talkbursts or volleys are transmitted by the RTX from the originating mobile to the terminating mobiles on the circuit channels.

Abstract: A system and method for providing advanced voice services in a wireless communications network, and more specifically, a method and framework to achieve a Fully Acknowledged Mode Communication (FAMC) in Push-to-talk-over-Cellular (PoC). A FAMC call session is a PoC call session that can only be established when all members of a set are available.

Abstract: A converged mobile-Web communications solution interfaces to both a mobile phone network and an Internet or Intranet network, so that services that are provided to mobile phones in the mobile phone network are also provided to Web clients in the Internet or Intranet network.

Abstract: A converged mobile-Web communications solution interfaces to both a mobile phone network and an Internet or Intranet network, so that services that are provided to mobile phones in the mobile phone network are also provided to web clients or web widgets in the Internet or Intranet network.

Abstract: Enhanced Group Calling Features for Connected Portfolio Services in wireless communications networks, such as a mobile or cellular phone communications networks. The Connected Portfolio Services include Mobile Conferencing (Scheduled/Instant/Reservationless Conference), Family Connect, Buddy Connect, and Quick Reach, while the Enhanced Group Calling Features include Voicemail Diversion (the recognition of a diversion to voicemail and dropping the leg), Reverse Quick Reach (where a terminating subscriber defines how a call dialed to his/her mobile number should be handled and directed), and Single Number Group Calling (an optimal design implementation of single number based group calling).

Abstract: A predictive wakeup function for Push-to-Talk-over Cellular (PoC) call setup optimizations in a cellular mobile phone network. In performing the predictive wakeup for call setup optimizations, an originating mobile transmits an event trigger to a real-time exchange that interfaces to a mobile switching center in the cellular mobile phone network. The real-time exchange transmits a wakeup message to one or more terminating mobiles of predicted participants, in order to transition the terminating mobiles of the predicted participants from a dormant state to an active state prior to a call being setup with the terminating mobiles of the predicted participants. The terminating mobiles of the predicted participants are identified by a predictive wakeup mechanism before the originating mobile sends a list of one or more terminating mobiles of actual participants to the real-time exchange.

Abstract: Advanced group services for use in a mobile phone network include a prepaid billing solution. In the mobile phone network, a real-time exchange interfaces to at least one mobile switching center to provide the advanced group services therein. Both the real-time exchange and the mobile phones that use the advanced group services communicate with each other using call setup and in-band signaling within the mobile phone network, wherein the real-time exchange switches the voice frames for the advanced group services between the mobile phones across bearer paths and through at least one mobile switching center in the mobile phone network. A real-time billing mechanism is provided for a prepaid subscriber of the advanced group services. The real-time billing mechanism may use a prefix-based billing solution or a charging number based billing solution.

Abstract: A client application that provides advanced voice services (AVS), such as Push-to-Talk (P2T), Push-to-Conference (P2C), Upgrade to Conference (upgrade from P2T to P2C), Push-to-Message (P2M) and group SMS (Short Message Service), on wireless handsets and networks using a Binary Runtime Environment for Wireless (BREW™), which is an open architecture that serves as a common platform for wireless applications. The functionality provided by the BREW™ AVS client application includes menu displays for the handset, as well as user interaction with the menu displays. Specifically, the functionality includes One-to-One Conference Calls, One-to-Many Conference Calls, Dynamic Conference Calls, One-to-One Messaging, or One-to-Many Messaging.

Abstract: A real-time exchange (RTX) interfaces to a wireless communications system to provide enhanced features for advanced voice services (AVS), which include Voice Activated Floor Management, Voice Short Message Services (SMS) and Address Book Backup.

Abstract: A real-time exchange (RTX) interfaces to a wireless communications system to provide enhanced features for advanced voice services (AVS), which include location-based information, voice portal integration, push ring tones and voice message screening.

Abstract: Group voice services are provided in a wireless network, such as a cellular telephone network (104, 108, 116), by a dispatch gateway (102) that interfaces to the wireless network to provide the group voice services therein, wherein both the dispatch gateway and mobiles (120) that use the group voice services communicate with each other using cell setup and in-band signaling within the wireless network.

Abstract: Advanced voice services, such as Push-to-Talk (P2T), Push-to-Conference (P2C), Upgrade to Conference (upgrade from P2T to P2C), Push-to-Message (P2M) and group SMS (Short Message Service), are provided for wireless networks. These services are provided by an architectural framework that interfaces into the wireless network in order to provide group call setup and messaging. Handset pre-provisioning reduces customer interaction in the process of activating handsets for use in the network. Presence messages are communicated between handsets and a real-time exchange using the Short Message Service (SMS), but without having to transmit the messages through a Short Message Service Center (SMSC) gateway, but instead the messages are transmitted using Mobile Application Part (MAP) interface connecting the real-time exchange directly to a mobile switching center.

Abstract: A Subscriber Identity Module (SIM) that stores the logic and data for providing advanced voice services (AVS) including Push-to-Talk (P2T), Push-to-Conference (P2C), Upgrade to Conference (upgrade from P2T to P2C), Push-to-Message (P2M) and group SMS (Short Message Service), on wireless handsets and networks. When inserted into a handset, the AVS functionality is available for use on the handset, wherein the functionality includes menu displays for the handset, as well as user interaction with the menu displays. The SIM also stores logic and data for providing presence and availability functions on the handset. In addition, the SIM stores the logic and data for providing contact and group management on the handset.

Abstract: An architecture, client specification and application programming interface (API) for supporting advanced voice services (AVS) for use in handsets in order to support advanced voice services (AVS) for wireless communications systems. The handset or mobile unit executes a client application therein for performing the call setup and in-band signaling with the wireless network for the group voice services, and executes a presence/group management application therein for performing presence and group management functions related to the group voice services in the mobile unit.

Abstract: A system for providing advanced voice services (AVS) in wireless communications systems includes a Real-Time Exchange (RTX) that interfaces to a wireless communications network to provide the AVS therein, wherein the AVS comprise Closed User Groups and Limiting Mobility. The Closed User Groups allow a group of users to make and receive calls only to other members of a group, and calls outside of the group are disallowed. The Limiting Mobility uses location information to restrict a mobile unit to service within one or more specified systems, cells or location areas.