Abstract: A PTT bridging gateway between a first PTT system and a second disparate PTT system: receives an invitation to a first client to join a first group call for a first group comprising multiple member clients on the first PTT system, wherein the first client is one of the member clients of the first group; determines that the first client is mapped to a second group comprising multiple member clients on the second PTT system; and initiates a second group call to the multiple member clients on the second PTT system.

Abstract: A system and method for transmitting alert tone information among communicating wireless devices to identify a speaker in a push-to-talk system. A predefined set of alert tones is stored in a wireless device, and when a user presses a push-to-talk button on the wireless device, the wireless device displays a list of predefined alert tones to the user to select. After the user selects an alert tone, the wireless device transmits an alert tone code associated with the selected alert tone to a server for relaying to every wireless device in a push-to-talk communication group. When a receiving wireless device receives the alert tone code, it retrieves an alert tone corresponding to the alert tone code from the predefined set and plays the alert tone to the user of the wireless device.

Abstract: Systems and methods for managing power consumption on a trunked network include listening to a control channel on a trunked system with a trunked pager, and receiving a voice channel assignment. The trunked pager listens for voice traffic on the assigned voice channel while in a standby mode. Voice traffic is detected and the trunked pager determines whether the voice traffic is for a communication group that includes the trunked pager. If so, the trunked pager unmutes and listens to the voice traffic. Upon termination of the voice traffic, the trunked pager returns to the control channel to listen for a different voice channel assignment. Otherwise, the trunked pager directly returns to the control channel to listen for a different voice channel assignment.

Abstract: An exemplary land mobile radio dispatch console and method are provided. In one embodiment, the console has the capability to process and handle Requests To Talk (RTT) and emergencies. In another embodiment, the console has the capability to provide a history. In another embodiment, the console provides the capability for operators to configure and save patches of predefined groups for later use. In another embodiment, the console includes a telephone interconnect interface component, and combinations of features mentioned above.

Abstract: In a Push-To-Talk (PTT) communication method, during a PTT conversation between multiple mobile terminals in a PTT chat-room, a first mobile terminal specifies a second mobile terminal as a target for a forced leave and makes a request to a PTT server for a forced leave of the second mobile terminal. The PTT server forces the second mobile terminal to leave the PTT chat-room. During a PTT chat-room conversation, a disruptive member can be forced to leave the PTT chat room and is not allowed to later re-join the PTT chat room. Thus, it is possible to more smoothly run a PTT chat room in a manner fitting for the purpose, enhancing user convenience.

Abstract: The invention relates to a method and system for extending a known push to talk service in such a way that novel application capabilities are obtained. According to said invention, the use of said push to talk techniques is carried out by adding a functionality making it possible to transmit other forms of data besides speech.

Abstract: A method of provisioning multicast services is provided. In an example, the method includes forming a plurality of multicast groups, each of the plurality of multicast groups associated with one of a plurality of first channel quality ranges. A request for a multicast service and an indicator (e.g., a channel quality indicator (CQI)) indicating a channel quality of a mobile unit are received from the mobile unit. The mobile unit is assigned to one of the plurality of multicast groups based on the indicated channel quality and the plurality of first channel quality ranges.

Abstract: Methods and systems for implementing trunking techniques in WCDMA systems for handling group calls and push-to-talk services.

Abstract: The present invention provides a method of terminal PTT registration based on CDMA trunking system and the system thereof, comprising: a user terminal is powered and a normal CDMA registration flow is completed, and afterwards the value of a PTT registration message counter is initialized; the user terminal sends a PTT registration message to a dispatching sub-system (server) and starts a PTT registration timer; and a corresponding process is performed according to the response message from the dispatching server, which is the reception of the trunking registration or the rejection of the trunking registration. Therefore the terminal with CDMA trunking function can avoid the problem caused by a failed PTT registration.

Abstract: Disclosed is a method for enabling a terminating-side Push-To-Talk (PTT) over Cellular (PoC) client to open a PoC session by using a pre-established session, and to maintain the pre-established session when the terminating-side PoC client terminates the open PoC session, and a PoC system and a PoC User Equipment (UE) for implementing the same. To this end, a REFER BYE message is used to terminate the PoC session while keeping the pre-established session maintained. The REFER BYE message must include information, such as pre-established session parameter information, a session IDentifier (ID), etc. Also, the REFER BYE message is transmitted from the PoC client to the PoC server, and the PoC server receives the REFER BYE message, checks the contents of a header in the received message, and terminates the PoC session while keeping the pre-established session maintained when a specified condition is satisfied.

Abstract: A system, method, and computer program product are provided for communicating location-related information. In operation, a vehicular assembly is utilized to communicate with a mobile device. Additionally, a location of a vehicle associated with the vehicular assembly is identified, utilizing the vehicular assembly. Furthermore, information based on the location is generated. Still yet, the information is communicated utilizing the mobile device.

Abstract: A method, a system and a computer program product for determining one or more characteristics of a caller, such as the mood, gender, age, and urgency of the caller, utilizing the biometric characteristics of the caller. One or more biometric characteristics are detected when a request to place an outgoing call to one or more destinations is received at a first telecommunication device. When the request to place an outgoing call is a verbal request, one or more biometric voice samples are obtained. The biometric voice samples comprise the biometric characteristics of the caller. The biometric characteristics are extracted from the biometric voice samples, encoded into a datagram, and transmitted from the first telecommunication device to the outgoing call destination (i.e. a second telecommunication device).

Abstract: The present invention provides a method for determining a paging slot of a CDMA mobile station trunking service. The method includes two situations: the mobile station supporting the minus slot function and not supporting the minus slot function. When the station supports the minus slot function, according to the matching situation of the system identifier and a network identifier of a base station, and the system identifier and the network identifier stored in the mobile station, and whether the minus slot paging cycle information is contained on the paging channel overhead message, the paging slot is determined by different modes.

Abstract: A method of automatic creation of a talk group in a wireless radio communication system comprising a plurality of mobile stations, said method comprising the steps of: transmitting by a first mobile station an emergency message containing at least its ID and localization data; transmitting by other mobile stations their IDs and localization data in response to said emergency message; creating said talk group by selecting those mobile stations which transmitted their IDs and localization data.

Abstract: A system and method enable a wireless device to support simultaneously multiple push-to-talk (PTT) communications and interrupt certain PTT communication with higher priority ones. A user subscribes to multiple PTT communication groups and designates one of the groups as the primary group. The wireless device receives and plays PTT communications from the multiple PTT communication groups and interrupts playing of a PTT communication from a non-primary group if a PTT communication is received from the primary PTT communication group.

Abstract: A unique system and method that facilitates group-based mobile communication around external feed content is provided. The system and method involve adding external feed content to content generated within a group. Both types of content can be viewed on the mobile devices of the group. Updates to the feed content can be obtained and communicated to the group. When multiple feeds are subscribed to by a group, one or more group members can display such feed content in a selective manner. For example, splinter groups can be formed off of the original group for members who wish to receive a subset of feeds (feed content) to assist them in focusing on a topic of interest. Group members can also employ display filters to restrict feed content displayed on their mobile devices. Users can also search for available feeds and form new groups around such content or join an existing group.

Abstract: An apparatus and a method for facilitating paging of a mobile station that is capable of being paged either pursuant to an individually-directed page or pursuant to a broadcast page. The page that is generated is of bits that permit unambiguous determination by a mobile station when the mobile station receives an individually-directed page and when the mobile station receives a broadcast page. When bits that are to be used in a page are created at the network, a determination is made as to whether the bits correspond to the bits of a broadcast page. If the bits correspond, the bits of the generated bits are altered.

Abstract: A method and apparatus for reducing latency when setting up a Push-to-Talk (PTT) session from a User Equipment (UE) in a WCDMA radio communication network. When a user opens a PTT application or accesses the contacts page, the UE obtains a radio bearer from the network. The UE may maintain the radio bearer until the session is requested by transmitting periodic Heartbeat messages to the network. The Heartbeat messages have a length sufficient to trigger the network to place the user terminal on a Dedicated Channel (DCH), and the time period between Heartbeat messages is short enough to prevent the UE from being removed from the DCH for inactivity. When the user presses the PTT button, a SIP INVITE message is immediately sent without delay.

Abstract: A half-duplex communication system is embodied in a push-to-talk cellular system such as a GPRS system. The system includes two or more terminals (1 A, 1 B, 1 C) one or more of which can operate in a hands-free mode. When in hands-free mode, a terminal (1 A) is offered the right-to-speak by a controller (11 A, 13 A, 15 A, 17 A) within the system without the need for a talk request from a user. This allows a hands-free user to participate safely in a communications session.

Abstract: Within a two way radio frequency communication system, a repeater transmits an identity of a rest channel when transmitting during an active communication call on a channel other than the rest channel. A subscriber unit communicating within the active communication, receives the identity of the rest channel, leaves the active communication; and initiates a new communication on the rest channel.

Abstract: Disclosed is a method for enabling a terminating-side PoC client to open a PoC session by using a pre-established session, and to maintain the pre-established session when the terminating-side PoC client terminates the open PoC session, and a PoC system and a PoC user equipment (UE) for implementing the same. To this end, a REFER BYE message is used to terminate the PoC session while keeping the pre-established session maintained. The REFER BYE message must include information, such as pre-established session parameter information, a session ID, etc. In order to obtain the session parameter information, when the PoC session is opened by means of the pre-established session, a specified condition is determined in the terminating-side PoC client and a PoC server, and the pre-established session parameter information is stored in each PoC client and a PoC server acting as a participating PoC function according to a result of the determination.

Abstract: A system, method, and computer program for providing a greater reliability for a direct-communication, such as push-to-talk communication, being bridged between members of a communicating group of wireless telecommunication devices. Each wireless telecommunication device, such as a cellular telephone or PDA, of a plurality periodically informs a group communication server of the presence of that wireless telecommunication device on the wireless telecommunication network such that upon receipt of a request from a wireless telecommunication device to bridge a direct communication, the group communication server will attempt to bridge the requested direct communication with the target set of wireless telecommunication devices only if at least one of the wireless telecommunication devices of the target set has indicated its presence on the wireless telecommunication network.

Abstract: An apparatus and method of a method of a wireless mesh network proposing access nodes for conversion to gateways is disclosed. The method includes each access node of the wireless mesh network measuring wireless mesh network metrics. A server connected to the wireless mesh network obtains the network metrics, and calculates a desirability of conversion of at least one access node to a gateway based upon the network metrics. An apparatus and method of a server of a wireless mesh network calculating which access nodes of the wireless mesh network should be converted to gateways is also disclosed. The method includes the server receiving wireless mesh network metrics from the access nodes, and calculating which of the access nodes should be converted based upon the network metrics.

Abstract: A method is provided in one example and includes receiving a first channel release notification from a communication network at a trunked radio network gateway connecting one or more trunked radio networks to the communication network. The method also includes determining whether the first channel release notification was generated in response to an initial seizure or a release of a channel in a trunked radio network of the gateway. The method further includes suppressing transmission of a further channel release notification based on data included in the first channel release notification that indicates an origin of the channel seizure or the release causing the first channel release notification to be generated. In more specific embodiments, the data includes parameter values indicating an originating source for the seizure or the release and a responding source generating the channel release notification.

Abstract: A method and apparatus for communicating amongst two-way radios is disclosed. The method includes operating a two-way radio 130 in either a trunked mode or conventional mode over an operating frequency and scanning an auxiliary channel by the two-way radio 130 to enable radio communication on the auxiliary channel while maintaining the operating frequency active. The radio 130 further detects a signal on the auxiliary channel with another radio 150 and communicating on the auxiliary channel in an intercom mode to provide an intercom radio-to-radio communication amongst all radios 130, 140 scanning on the auxiliary channel.

Abstract: A method for indicating the status of communication channels assigned to a talkgroup includes: determining the channels in various sites in a conventional communication system that service a talkgroup for media transmissions between subscribers of the talkgroup; receiving notification of the status of transmission activity on the channels; and based on the notification, providing an indication of the status of the channels assigned to the talkgroup so that the talkgroup or subscribers of the talkgroup can choose to proceed with a talkgroup communication. The notification may be received by an infrastructure device in an RF site or a central controlling entity. The indication may be that the channel is free for transmissions or is busy.

Abstract: One illustrative technique is performed in a requesting terminal of a plurality of terminals of a communication group for a communication session delivered via a network. Each terminal has communication capabilities within the communication group, such that a currently-transmitting terminal in the communication group is given a transmit capability using a talk channel while all other terminals of the communication group have a receive capability. The requesting terminal, which is not the currently-transmitting terminal, receives a user input for selecting a responding terminal of the communication group for responding in the communication session. The requesting terminal then transmits, while the transmit capability is given to the currently-transmitting terminal, a request for the network to grant the responding terminal the transmit capability. The request includes an identification of the responding terminal.

Abstract: It is an object of the present invention to ensure readily communication between subgroups with reduced trouble to the user in the group communication in terms of subgroup formation and so on. A group communication server according to an embodiment of the present invention provides terminals with an intercommunication function between a plurality of terminals belonging to the same group, specifically a group communication function.

Abstract: The method of present invention is used for addressing a broadcast message in a trunking system, in which said trunking communication system includes a base station and mobile stations. This method includes the following steps: adding a new index of trunking broadcast time slots, with all the mobile stations that support boundless capacity group call service monitoring these trunking broadcast time slots; the base station transmitting the paging message of the boundless capacity group call in the trunking broadcast time slot; and using the group identification as the broadcast address, allowing addressing to the group identification and not a single mobile station. The method of present invention efficiently solves the problem of paging channel capacity limitations of the boundless capacity group call service supported by CDMA trunking telecommunication systems, and greatly shortens the time of group call connection.

Abstract: Disclosed is a method for dynamically allocating channel resources in a wireless communication system. A request for a channel resource by a new talkgroup call is received. Whether the new talkgroup call is associated to an associated communication based upon an operational relationship of the new talkgroup call to the associated communication is determined. The channel resource for the new talkgroup call based upon the operational relationship is allocated.

Abstract: Various example embodiments are disclosed relating to wireless networks, such as relating to techniques to improve coverage of push-to-talk wireless networks or services. In an example embodiment, a technique may include forwarding data to a remote push-to-talk (PTT) wireless network via an intermediary device of an intermediary wireless network if the data is received from a wireless device of a local push-to-talk (PTT) wireless network, forwarding data directly to one or more wireless devices of the local PTT wireless network if the data is received from the remote PTT wireless network via the intermediary device, and forwarding data to one or more wireless devices of the local PTT wireless network and to the remote PTT wireless network via the intermediary device of the intermediary wireless network if the data is generated locally.

Abstract: A method of operation of a cognitive radio in a hierarchical group of cognitive radios, the hierarchy of cognitive radios including at least one master cognitive radio that has a higher position in the hierarchy than another of the cognitive radios in the group, consistent with the present invention, involves establishing a first operational policy for the group of cognitive radios; determining that the operational policy is unsuitable for use by at least one member of the group; and the master cognitive radio dictating a change in the operational policy used by the group to a second operational policy for use by the group.

Abstract: A priority indication, which is used to prescribe at least one priority with which a conference session to which the at least one participant communication terminal is to be invited is to be conducted, is added to a conference session invitation message.

Abstract: A communication system provides for an informing of participants in a Push-to-Talk over Cellular (PoC) communication session that the session is being recorded by a recording device, for a storage, by the recording device, of media that conveyed during the session, and for a subsequent retrieval of the stored media from the recording device. In various embodiments of the invention, a host of the communication session is permitted to determine whether or not the recording device is permitted access to the communication session, and the other participants in the session are able to determine whether to remain in the session when the recording device is permitted access. A user of an MS on behalf of whom the recording device is participating is then able to retrieve the stored media along with information identifying a source of the media and a time associated with the storage of the media.

Abstract: A method and apparatus for implicit floor control in push-to-talk over cellular system. A message is generated by a client in a communication system and is then streamed to a push-to-talk server. The server checks to see if the floor is idle, and if so, distributes the message to at least one other participant in the communication session. If the floor is not idle, the new message is stored and queued for distribution after all other messages ahead of the last received message have been distributed.

Abstract: A mobile collaborative community system provides distribution of shared data (e.g., media, preference, calendar, contacts, tasks, etc.) for a group of individuals (e.g., families, business organization, team, project, etc.) to the mobile devices of the group members. The system maintains a central repository or database of shared data for groups, as well as information defining the groups, user membership in the groups, and the mobile devices associated with the users. The system distributes the shared data for a group to the mobile devices of the user who are members of the group. The users can make changes to shared group data on their mobile devices, which changes are returned to the central repository and re-distributed to update the shared data on the mobile devices of all group members.

Abstract: Systems and methods for forwarding dispatch communications are provided. A dispatch communication forwarding request is sent to a dispatch processor or a dispatch communication forwarding server. A record associated with the dispatch station initiating the dispatch communication forwarding request is updated in a home location register to indicate that dispatch communications intended for the dispatch station should be forwarded to another dispatch station. The communication forwarding can be absolute such that all communications intended for one dispatch station are forwarded to another dispatch station. Alternatively, the communication forwarding can be conditional such that all dispatch communications meeting certain criteria intended for one dispatch station are forwarded to another dispatch station.

Abstract: A receiving device in the trunked radio communications system receives an outbound signaling word comprising at least an opcode field and a band plan field, wherein the opcode field indicates that the outbound signaling message is a system status message and the band plan field indicates the band plan in use on the site. In another embodiment, the receiving device receives an outbound signaling word comprising at least an opcode field, a site identification field and a four bit band plan field, wherein the opcode field indicates that the outbound signaling message is an adjacent control channel message, the site identification field identifies a second site, and the four bit band plan field indicates the band plan in use on the second site.

Abstract: A method to indicate delays in a push-to-talk over cellular (PoC) group call may include offsetting a timestamp in a data stream being transmitted to a late listener to indicate a delay from when the data stream was transmitted to a first listener. The data stream includes data convertible to speech. The method may also include transmitting the data stream including the offset timestamp to the late listener.

Abstract: Apparatus and method for selectively enabling an early push-to-talk (PTT) call set up request in a wireless communications network. When a user activates a directory application on a wireless device, the wireless device checks for network information received from a base station. If the network information indicates that the network is of a predetermined type and can advantageously set up the PTT call, the wireless device enables the early PTT call set up request by sending a data channel set up request to the base station. If the network information does not indicate the network is of the predetermined type, the wireless device does not send any data channel request to the base station until the user has actually initiates a PTT call.

Abstract: Systems and methods for facilitating dispatch communications are provided. Buttons related to dispatch communications can be displayed when dispatch call addresses are received by a mobile station. Additionally, selection menus with options related to dispatch communications can be displayed in a call history display when a dispatch communication is selected. When a contact with a dispatch communication address is selected, a selection menu with options related to dispatch communications can be displayed.

Abstract: A method of and system to determine which channels are accessible by a communication device in a push-to-talk communication network are disclosed. The method may comprise sending an identifying network connectivity message to the communication device across a particular network channel, the identifying network connectivity message including an identification code. The method further comprises querying the communication device for the identification code to determine if the communication device successfully received the identifying network connectivity message, thereby to establish if the particular network channel is accessible by the communication device.

Abstract: SIP type signal protocol for a mobile communication network (N), comprising an invitation signal message (MI) “INVITE”, intended to set-up a “Push to Talk” type communication session between a calling communication client (A) and one or several called communication clients (B, C), and containing the logical address of the calling communication client and an address of the called communication client(s). The signal protocol is innovative in that the invitation signal message (MI) also contains a visiting card associated with a user of the calling communication client (A).

Abstract: The invention concerns a method of providing a Push-to-Talk (=PTT) service within one or more telecommunication networks (1, 2, 3, 4) by means of a gateway-server (5) which sets up a virtual connection per PTT connection. The virtual connection provides information about the participating terminals (10, 20, 30, 40) of the PTT connection, the service type to reach each terminal (10, 20, 30, 40), and the connection status of each terminal (10, 20, 30, 40). Thus, the gateway-server (5) is capable of providing the PTT service within and/or across different telecommunication networks comprising radio access telecommunication networks (1), fixed wire-line telecommunication networks (2), circuit-switched telecommunication networks (3), and packet-switched telecommunication networks (4).

Abstract: Systems and methods for supporting group communications are provided. A group list management server (GLMS) stores communications group definitions in documents, such as extensible mark-up language (XML) documents. The communications group can include communication addresses for different types of communication applications, including electronic mail, voice telephone, data, instant messaging, voice dispatch, short messaging service (SMS), and multimedia service (MMS). Various methods for managing communications groups and features provided for communications groups are provided.

Abstract: Providing one or more virtual talk groups to an endpoint includes establishing one or more resources of a user endpoint. Demand of the one or more virtual talk groups is estimated, where the demand is placed on the one or more resources. Whether the one or more resources are capable of satisfying the demand is determined. At least a subset of the one or more virtual talk groups that may be presented to the user endpoint is established, if the one or more resources are not capable of satisfying the demand. At least the subset of the one or more virtual talk groups is provided to the user endpoint.

Abstract: A communications system includes a plurality of radios that form a CSMA wireless communications network to communicate none-packetized digital voice with each other. Each radio is operative for dividing the period following the end of a received transmission into a sequence of time slots, each having a duration at least equal to an effective end-to-end traffic latency. In each time slot, the radio decides randomly with probability p whether to start transmitting on the channel in that slot, provided that a new transmission has not been detected on the channel prior to the start of the slot.

Abstract: A push-to-talk (PTT) method for optimizing talk burst control in a PTT communication network is provided. The method comprises transmitting a talk burst inquiry from a first PTT terminal to a PTT server requesting a talk burst control message to determine a talk burst state of the first PTT terminal; and receiving from the PTT server the talk burst control message providing the talk burst state of the first PTT terminal, in response to the talk burst inquiry, wherein the talk burst state indicates whether a talk burst request is granted to a second PTT terminal.

Abstract: A communications system includes a plurality of radios that form a carrier sense multiple access (CSMA) wireless communications network and communicate non-packetized digital voice with each other. Each radio is operative for dividing the period following the end of a transmission into a sequence of time slots and determining whether an end of a conversation has occurred. If an end of a conversation has occurred, the system decides randomly or pseudo-randomly with probability p to start transmitting on the channel in that slot.

Abstract: The present invention provides a method of terminal PTT registration based on CDMA trunking system and the system thereof, comprising: a user terminal is powered and a normal CDMA registration flow is completed, and afterwards the value of a PTT registration message counter is initialized; the user terminal sends a PTT registration message to a dispatching sub-system (server) and starts a PTT registration timer; and a corresponding process is performed according to the response message from the dispatching server, which is the reception of the trunking registration or the rejection of the trunking registration. Therefore the terminal with CDMA trunking function can avoid the problem caused by a failed PTT registration.