An embodiment method includes discovering, by a user equipment (UE), a plurality of UE-to-Network relays available to the first UE. The UE is located outside a coverage area of a wireless communications network. The method includes receiving, by the first UE, one or more capacity indications from the plurality of UE- to-Network relays and selecting, by the first UE, a first UE-to-Network relay from the plurality of UE-to-Network relays to connect to the wireless communications network in accordance with a relay selection policy and the one or more capacity indications. The method includes connecting, by the first UE, to the first UE-to-Network relay using direct mode communications.
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
H04W 48/16 - Exploration; Traitement d'informations sur les restrictions d'accès ou les accès
2.
SYSTEM AND METHOD FOR PUSH-TO-TALK (PTT) IN MOBILE EDGE COMPUTING (MEC)
In an embodiment, a method includes: synchronizing service information for a push-to-talk (PTT) client between a central PTT server and an first edge PTT server, the first edge PTT server and the PTT client being in a first network, the central PTT server being in a second network different from the first network; establishing a service session with the PTT client at the first edge PTT server in accordance with the service information, the service session used to conduct a PTT call with the PTT client; registering a first functionality for the PTT call at the first edge PTT server with the central PTT server; and performing the first functionality for the PTT call at the first edge PTT server.
A method and apparatus for situational awareness driven group communications are provided. In an embodiment, a PTT server platform receives incident information related to an incident. The PTT server platform identifies members of a first response group for responding to the incident based on the incident information, and creates a PTT call group associated with the incident. The PTT server platform configures the client devices associated with the members of the first response group with the first set of QoS parameters, and enables communications among the client devices associated with the members of the first response group.
A method of operating a push-to-anything (PTX) platform includes receiving, by a data analytics engine (DAE) of the PTX platform, a first input signal from a first input source; calculating, by the DAE, a risk indicator using the first input signal, the risk indicator indicating a level of a security threat; detecting a risk event, by the DAE, when the risk indicator is above a first pre-determined risk threshold, the first pre-determined risk threshold corresponding to a pre-determined level of security threat above which an emergency response protocol is initiated; generating, by the DAE, a group list in response to the detecting, the group list comprising one or more client devices of the PTX platform.
An embodiment method includes defining, by a server of a services platform, an access technology selection profile for a client on a client device. The access technology selection profile defines a priority order for selecting, by the client, at least one of a plurality of access technologies to access one or more telecommunications services provided by the services platform. The method further includes transmitting, by the server, the access technology selection profile to the client and providing, by the server, a first telecommunications service of the one or more telecommunications services to the client using a first access technology of the plurality of access technologies. The first access technology is selected from the plurality of access technologies in accordance with the access technology selection profile.
In an embodiment, a method includes: accessing, by a push to talk (PTT) server, a PTT session with a PTT client operating in a first network; detecting, by the PTT server, a transition by the PTT client from the first network to a second network, the second network having a lower throughput or a higher latency than the first network; and adapting, by the PTT server, one or more parameters of a plurality of communication protocols in response to detecting the transition by the PTT client from the first network to the second network, the communication protocols being host layer protocols used by the PTT server to communicate with the PTT client.
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
A system and method for push-to-talk (PTT) key one-touch calling is provided. In an embodiment, a client device accesses a discontinuous reception (DRX) mode policy. The DRX mode policy is in accordance with push-to-talk (PTT) usage patterns of at least the client device. The client device selects a DRX cycle time based on the DRX mode policy. The client device applies the DRX cycle time to a cellular network interface of the client device.
An embodiment method includes receiving, by a server of a telecommunications services platform, a request for a first call session quality indicator (CSQI) of a first client device, determining, by the server, first channel parameters of a first channel between the server and the first client device, and calculating, by the server, the first CSQI of the first client device in accordance with the first channel parameters of the first channel. The method further includes transmitting, by the server, the first CSQI to the first client device and receiving, by the server, a call session initiation request from the first client device after transmitting the first CSQI to the first client device.
A system and method for content messaging includes observing, by the server, synchronization of a database cluster accessible to the server with a first local database at a first client, the database cluster including a message after the synchronization, the message including content and instructions for processing the content, and processing, by the server, the content of the message according to the instructions for processing the content, in response to observing the synchronization.
G06F 11/14 - Détection ou correction d'erreur dans les données par redondance dans les opérations, p.ex. en utilisant différentes séquences d'opérations aboutissant au même résultat
G06F 12/00 - Accès à, adressage ou affectation dans des systèmes ou des architectures de mémoires
G06F 17/30 - Recherche documentaire; Structures de bases de données à cet effet
A system and method for geofencing includes sending, by the location management server, location data collection criteria and location data reporting criteria to a first location-aware client; and receiving, by the location management server, location data from the first location-aware client, the location data collected by the first location-aware client according to the location data collection criteria, the location data received from the first location-aware client according to the location data reporting criteria.
G01S 5/00 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de position; Localisation par coordination de plusieurs déterminations de distance
H04W 4/02 - Services utilisant des informations de localisation
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p.ex. gestion de la mobilité
11.
SYSTEM AND METHOD FOR MEDIA ENCODING SCHEME (MES) SELECTION
An embodiment method includes initiating, by one or more servers of a push-to-talk (PTT) platform, a PTT call session in response to a PTT call session initiation request from a first client device, receiving, by the one or more servers, a first estimated modulation and coding scheme (MCS) from the first client device, and receiving, by the one or more servers, a first transmission in accordance with an initial media encoding scheme (MES) from the first client device during an initial volley. The method further includes transmitting, by the one or more servers, instructions to the first client device to use a first MES different than the initial MES for a second transmission during a subsequent volley.
A system and method for push-to-talk (PTT) over long-term evolution (LTE) includes a method. The method includes receiving, by a push-to-talk (PTT) server, a request from a user equipment (UE) to access the PTT server. The method further includes determining, by the PTT server, quality of service (QoS) parameters for a radio access network (RAN) connecting the UE to the PTT server. The method further includes associating, by the PTT server, the QoS parameters with a bearer between the RAN and the PTT server. The method further includes communicating, by the PTT server, with the UE according to the bearer.
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
H04W 40/12 - Sélection d'itinéraire ou de voie de communication, p.ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la qualité d'émission ou de la qualité des canaux
13.
PTT NETWORK WITH RADIO CONDITION AWARE MEDIA PACKET AGGREGATION SCHEME
A method of operating a client device in a Push-to-talk (PTT) network includes monitoring, by the client device, radio conditions of the PTT network, and generating a radio condition parameter by the client device. The method also includes calculating, by the client device, an estimate of Channel Quality Indicator (CQI) using the radio condition parameter, and determining, by the client device, a first Modulation and Coding Scheme (MCS) in accordance with the estimate of CQI.
A system and method for improved push-to-talk (PTT) communications performance includes a PTT application server receiving a request from a client user equipment (UE) device to access PTT services over a carrier network. The PTT application server measures, determines, predicts, or otherwise detects congestion in a cell of the carrier network servicing the client UE device. In a representative aspect responsive to detecting a value of congestion, the PTT server modifies one or more PTT call parameters, transmits a modified PTT call parameter to the UE device, and reduces the number of signals subsequently transmitted to the UE device. The modified PTT call parameter may be a codec selection for encoding/decoding PTT voice data. Subsequently transmitted signals may include acknowledgement signals, retry requests, bundled frames, or the like.
An embodiment includes receiving, by a client on a client device, a data change notification. The data change notification indicates a change in data relating to the client at a client data store. The method further includes determining, by the client, a type of the data relating to the client changed at the client data store and determining, by the client, a data synchronization mechanism in accordance with the type of the data relating to the client changed at the client data store. Determining the data synchronization mechanism includes determining when to attempt, by the client, a data synchronization to synchronize data on the client device with the data relating to the client changed at the client data store.
A network-to-network interface (NNI) device, including at least one push-to-talk (PTT) interface adapter, a processor connected to the at least one PTT interface adapter, and a non-transitory computer readable medium connected to the processor. The non-transitory computer readable medium has stored thereon instructions that, when executed by the processor, cause the NNI device to receive a first PTT communication in a first PTT format through the at least one PTT interface adapter from a first PTT system, translate the first PTT communication into a second PTT communication in one or more second PTT formats, and transmit the second PTT communication through the at least one PTT interface adapter to one or more second PTT systems
An embodiment method includes receiving, by a notification service running on a processor, a notification from a first component of a push-to-talk (PTT) platform. The notification is for transmission to a PTT client. The method further includes determining, by the notification service, an access transport type used by the PTT client to communicate with the PTT platform, and selecting, by the notification service, a second component to transmit the notification to the PTT client. Selecting the second component is in accordance with the access transport type used by the PTT client. The method further includes transmitting, by the notification service, the notification to the second component.
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.
An embodiment method includes triggering, by a service orchestrator, creation of one or more container instances for a first service cluster. The method further includes creating, by a container manager, the one or more container instances and mapping the one or more container instances of the first service cluster to one or more first virtual machines belonging to a first virtual machine server group in accordance with a platform profile of the first virtual machine server group and the first service provided by the first service cluster. The method further includes mapping, by a virtual machine manager, the one or more first virtual machines to one or more first host virtual machines of a cloud network in accordance with the platform profile of the first virtual machine server group.
A network-to-network interface (NNI) gateway system for inter-communication between a Push-to-talk-over-Cellular (POC) system in a first wireless network and an Integrated Digital Enhanced Network (iDEN) system in a second wireless network. The POC system performs a POC call session for POC mobile units in the first wireless network. The iDEN system performs a Push-to-Talk (PTT) call session for iDEN subscriber units in the second wireless network. The gateway system bridges the iDEN system to the POC system, such that the POC system is exposed to the iDEN system as an emulated iDEN system, the iDEN system is exposed to the POC system as an emulated POC system, and calls are placed across the first and second wireless networks between the POC mobile units and iDEN subscriber units.
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
21.
METHOD FOR PROVIDING DYNAMIC QUALITY OF SERVICE FOR PUSH-TO-TALK SERVICE
A system and method for providing dynamic quality-of-service (QoS) for Push-to-Talk (PTT) services in a wireless communications network. One or more servers interface to the wireless communications network to perform the PTT services for mobile units therein. Both the servers and the mobile units communicate with each other using control messages transmitted across bearers in the wireless communications network, and at least one of the servers transmits media streams comprised of voice messages for the PTT services between the mobile units across the bearers in the wireless communications network. At least one of the servers sets up a dedicated bearer in the wireless communications network for at least one of the mobile units, wherein the dedicated bearer has a specified quality of service (QoS) for transmission of at least the media streams to the mobile unit. The dedicated bearer may be static or dynamic.
H04W 8/18 - Traitement de données utilisateur ou abonné, p.ex. services faisant l'objet d'un abonnement, préférences utilisateur ou profils utilisateur; Transfert de données utilisateur ou abonné
22.
ARCHITECTURE FRAMEWORK TO REALIZE PUSH-TO-X SERVICES USING CLOUD-BASED STORAGE SERVICES
An architecture framework to realize Push-to-X services using cloud-based storage services. Push-to-X messages are transmitted between mobile units by messaging servers. The Push-to-X message may include a short text message contained wholly within the Push-to-X message, or the Push-to-X message may include one or more attachments that comprise multimedia contents, files, or location information, which are stored on storage servers, wherein the Push-to-X message identifies a location for retrieving the attachments from the storage servers. The Push-to-X messages may be sent to a single mobile unit identified by a Mobile Directory Number (MDN) or a group of mobile units identified by a list of MDNs or a Uniform Resource Identifier (URI).
A system and method for multiplexing data streams in order to optimize network resources for Push-to-talk-over-Cellular (PoC) systems. One or more servers interface to the wireless communications network to perform advanced voice services for one or more mobile units therein, which include a Push-to-Talk-over-Cellular (PoC) call session. Both the servers and the mobile units that use the advanced group services communicate with each other using control messages within the wireless communications network, and at least one of the servers switches media streams comprised of voice messages for the advanced group services between the mobile units across the wireless communications network. At least one of the mobile units is a participant in a plurality of PoC call sessions concurrently, and at least the media streams for each of the plurality of the PoC call sessions are multiplexed into a single path.
A system and method to leverage Web Real-Time Communication (WebRTC) for implementing Push-to-Talk (PTT) solutions. One or more servers interface to a communications network to perform advanced voice services for one or more wireless or wired user devices, wherein the advanced voice services include a two-way half-duplex voice call within a group of the user devices comprising a PTT call session. At least one of the user devices communicates with at least one of the servers during the PTT call session using a WebRTC connection, and at least the media streams for the PTT call session are transmitted between the server and the user device using the WebRTC connection.
H04L 12/28 - Réseaux de données à commutation caractérisés par la configuration des liaisons, p.ex. réseaux locaux [LAN Local Area Networks] ou réseaux étendus [WAN Wide Area Networks]
25.
SYSTEM FOR INTER-COMMUNICATION BETWEEN LAND MOBILE RADIO AND PUSH-TO-TALK-OVER-CELLULAR SYSTEMS
A network-to-network interface (NNI) gateway for inter-communication between a Push-to-Talk-over-Cellular (PoC) system in a first wireless network and a Land Mobile Radio (LMR) system in a second wireless network. The PoC system performs a PoC call session for PoC mobile units in the first wireless network. The LMR system performs a Push-to-Talk (PTT) call session for LMR subscriber units in the second wireless network. Both the PoC and PTT call sessions comprise an instant two-way half-duplex voice call within a group of the PoC mobile units and/or LMR subscriber units. The gateway bridges the LMR system to the PoC system, such that the PoC system is exposed to the LMR system as an emulated LMR system, the LMR system is exposed to the PoC system as an emulated PoC system, and calls are placed across the first and second wireless networks between the PoC mobile units and LMR subscriber units.
A system and method for relay-mode and direct-mode operations for Push-to-talkover-Cellular (PoC) using WiFi technologies. One or more servers interface to a wireless communications network to perform advanced voice services for mobile units therein, wherein the advanced voice services include an instant two-way half-duplex voice call within a group of the mobile units comprising a PoC call session. Both the servers and the mobile units that use the advanced group services communicate with each other using control messages within the wireless communications network. At least one of the servers switches voice messages for the advanced group services between the mobile units across the wireless communications network.
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
27.
OPTIMIZED METHODS FOR LARGE GROUP CALLING USING UNICAST AND MULTICAST TRANSPORT BEARERS FOR PUSH-TO-TALK-OVER-CELLULAR (PoC)
A system and method for optimizing large group calling using unicast and multicast transport bearers for Push-to-talk-over-Cellular (PoC). One or more servers interface to a wireless communications network to perform advanced voice services for mobile units therein, including the PoC call session. The servers and mobile units communicate with each other using control messages, and the servers switch voice messages between the mobile units. At least one of the servers manages the PoC call session by acting as an arbitrator, and controls the sending of the control messages and the voice messages to and from the mobile units. The server performs unicast and multicast delivery of the control messages and the voice messages to and from the mobile units, thereby enabling large group calling involving a large number of participants with optimized use of network and server resources.
A system and method for providing effective presence for Push-to-talk-over-Cellular (PoC) networks, wherein one or more servers performs an effective presence delivery method that reduces presence notifications delivered to mobile units participating in advanced voice services, while ensuring that the presence notifications relevant to the mobile units are available when the advanced voice services are invoked by the mobile units. The presence notifications are used to indicate a change in network presence of the mobile units. In addition, the presence notifications are used to indicate a change in self-availability status of the mobile units.
A system and method for providing radio access network (RAN) aware service delivery for Push-to-talk-over-Cellular (PoC) networks, wherein at least one of the servers performs an effective presence delivery method that reduces presence notifications delivered to the mobile units participating in the advanced voice services, by optimizing usage of service delivery mechanisms in the wireless communications network for delivery of presence notifications. The effective presence delivery method may comprise: throttling the delivery of the presence notifications; avoiding simultaneous dispatch of the presence notifications to multiple watchers located in the same cell or group of cells of the wireless communications network; or the server delaying sending the presence notifications for a mobile unit until the mobile unit triggers the server.
A system and method for providing advanced voice services in a wireless communications network. The system also interfaces to an Internet Protocol (IP) network to perform the advanced voice services for mobile units in the IP network and includes a protection mechanism against Voice-over-IP (VoiP) Denial-of-Service (DoS) attacks utilizing Advanced Group Services (AGS).
G06F 21/00 - Dispositions de sécurité pour protéger les calculateurs, leurs composants, les programmes ou les données contre une activité non autorisée
G06F 15/18 - dans lesquels un programme est modifié en fonction de l'expérience acquise par le calculateur lui-même au cours d'un cycle complet; Machines capables de s'instruire (systèmes de commande adaptatifs G05B 13/00;intelligence artificielle G06N)
G06F 15/16 - Associations de plusieurs calculateurs numériques comportant chacun au moins une unité arithmétique, une unité programme et un registre, p.ex. pour le traitement simultané de plusieurs programmes
31.
RUGGEDIZED CASE OR SLEEVE FOR PROVIDING PUSH-TO-TALK (PTT) FUNCTIONS
A ruggedized case or sleeve for a handset, wherein the case or sleeve communicates with the handset to provide or support Push-to-Talk (PTT) functions on the handset, thereby converting the handset into a PTT-enabled handset, without requiring any hardware changes to the handset. The case or sleeve includes a dedicated PTT button for invoking the PTT functions on the handset.
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. The predicted participants may be determined based on static or dynamic information, including heuristics involving calling patterns.
A Community Group Client and Community Auto-Discovery for use in a wireless communications network. The Community Group Client and Community Auto-Discovery are used with Community Group features for Advanced Voice Services or Advanced Group Services in wireless communications systems.
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).
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 at least one Real-Time Exchange (RTX) that interfaces to at least one Mobile Switching Center (MSC) in the cellular mobile telephone network to provide advanced voice services therein, wherein the advanced voice services provide instant two-way half-duplex voice messaging within a group ofusers of the cellular mobile telephone network, which is known as the Hybrid PTT function In the Hybrid PTT function, a first talkburst or volley is transmitted by the RTX from an originating mobile to one or more terminating mobiles on one or more pre-established Internet Protocol (IP) sessions between the RTX and the mobiles In addition, one or more circuit channels are established by the RTX with the mobiles through the MSC in parallel with the first talkburst or volley
Connected Portfolio Services for use in a mobile phone network include new mobile phone services: Scheduled Conference with Dial-Out and Dial-In modes of operation; Reservationless Conference; Instant Conferencing; Group Short Message Service with Reply All; Voice Short Message Service with Reply All; Family Connect; Buddy Connect; Quick Reach; and Email2Conference. Connected Portfolio Services also include a new handset client application, management of a limited pool of network routable numbers, and a prepaid billing solution.
Emergency group calling services in a wireless network are comprised of mass outbound (MO) voice or text messages sent from an originating mobile unit (120) to all terminating mobile units (120) in response to a single invocation by the originating mobile unit (120). The emergency group calling services are invoked by transmitting a message from the originating mobile unit to a real-time exchange (102).
H04M 11/04 - Systèmes de communication téléphonique spécialement adaptés pour être combinés avec d'autres systèmes électriques avec systèmes d’alarme, p.ex. systèmes d’alarme d'incendie, de police ou systèmes antivol
A system for providing advanced voice services (AVS) on legacy handsets includes a Real-Time Exchange (RTX) that interfaces to a wireless communications network to provide the AVS therein, wherein the AVS comprise Push-to-Talk, Conference Call, and Instant Voice Messaging. Both the RTX and the legacy handsets that use the AVS communicate with each other using an Unstructured Supplementary Service Data (USSD) session to provide the AVS on the handsets, wherein the USSD sessions are interactive, menu-driven sessions. The USSD sessions allow users of the legacy handsets to perform a number of AVS functions, including Group Management Services, Call Management Services, and Presence Management Services.
H04B 7/00 - Systèmes de transmission radio, c. à d. utilisant un champ de rayonnement
H04W 4/16 - Services supplémentaires liés aux communications, p.ex. transfert ou mise en attente d'appels
H04W 4/06 - Répartition sélective de services de diffusion, p.ex. service de diffusion/multidiffusion multimédia; Services à des groupes d’utilisateurs; Services d’appel sélectif unidirectionnel
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
H04W 4/20 - Signalisation de services; Signalisation de données auxiliaires, c. à d. transmission de données par un canal non destiné au trafic
SUBSCRIBER IDENTITY MODULE (SIM) ENABLING ADVANCED VOICE SERVICES (AVS) INCLUDING PUSH-TO-TALK, PUSH-TO-CONFERENCE AND PUSH-TO-MESSAGE ON WIRELESS HANDSETS AND NETWORKS
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.
H04W 4/18 - Conversion de format ou de contenu d'informations, p.ex. adaptation, par le réseau, des informations reçues ou transmises pour une distribution sans fil aux utilisateurs ou aux terminaux
H04W 8/18 - Traitement de données utilisateur ou abonné, p.ex. services faisant l'objet d'un abonnement, préférences utilisateur ou profils utilisateur; Transfert de données utilisateur ou abonné
H04M 3/53 - Dispositions centralisées pour enregistrer des messages entrants
H04M 3/56 - Dispositions pour connecter plusieurs abonnés à un circuit commun, c. à d. pour permettre la transmission de conférences
H04M 3/42 - Systèmes fournissant des fonctions ou des services particuliers aux abonnés
H04W 8/22 - Traitement ou transfert des données du terminal, p.ex. statut ou capacités physiques
A roaming gateway for support of advanced voice services while roaming in wireless communications systems. The roaming gateway supports push-to-talk (P2T) calls, or other advanced voice services, when P2T subscribers roam from their home network (i.e., a network operated by their service provider where the subscriber's profile resides) into a foreign network (i.e., a network operated by another service provider). The roaming gateway is a specialized version of a real-time exchange that is located in the home network and is connected to mobile switching centers in foreign networks, so that the mobile switching centers in the foreign networks need not be programmed for the advanced voice services.
H04W 4/10 - Services de messagerie instantanée vocale ou de messagerie sur appel
H04W 84/08 - Systèmes de radiocommunications à ressources partagées
41.
ARCHITECTURE, CLIENT SPECIFICATION AND APPLICATION PROGRAMMING INTERFACE (API) FOR SUPPORTING ADVANCED VOICE SERVICES (AVS) INCLUDING PUSH TO TALK ON WIRELESS HANDSETS AND NETWORKS
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.
brevets
