Abstract: A method for routing bearer traffic (70?) between 3G networks (32, 42) and 2G networks (12, 22) and vice versa uses voice signaling gateways (VSGW)(14, 24, 34, 44). The method determines a VSGW nearest the calling party (11). The nearest VSGW directly routes (86) the bearer traffic through the inter-network (50) to the called party (31) and avoids the “tromboning” effect of always sending bearer traffic to the called party's home location.

Abstract: A method for providing dynamic group call among a group of users both wireless (10-30) and wireline (40) places the selectability of the call in the hands of an originating user (10). An originating user (10) may make a fixed number of entries (80). The originating user (10) can create a dynamic group call, add a group call list for later execution, add a member to the group call list, or create a dynamic group call list and immediately execute a group call (92). The method for dynamic group call also provides for selecting a time to live for each group call entry (81) in database (60). This parameter time to live is directly selectable by the originating user (167) or the server. In addition, any member to a previous or existing group call may rejoin or reestablish the dynamic group call (220).

Abstract: A distributed home location register (DHLR) (102-104) authorizes roaming services agreement electronically for a user (1) in a foreign network (120). A home network 100 has a network HLR 101 which records the roaming agreement and charges for billing user (1). A visitor location register (VLR) (122) then charges user (1) for services while in the foreign network (120) according to the roaming services agreement.

Abstract: A proactive speculation method decreases the call setup time for private calls (200) and selective dynamic group calls (300). In a push-to-talk dispatch network (40) an originating mobile unit (10) sends a wake-up packet (54, 114) to the dispatch network (40). Prior to initiating the push-to-talk function, the target mobile units (20–30) receive a wake-up packet (68, 146–148) from network (40). Thereby, prior to establishing the push-to-talk function, each of the mobile units in the push-to-talk call have been coupled via RF links. If the originating mobile unit has a current IP address, direct wake-up packets (72) may be sent.

Abstract: A personal home location register (HLR) (10 –20) is modifiable directly by a user. The personal HLR then communicates with a telecommunications service provider (30) to directly affect changes in the personal HLR. The network HLR (70) of the telecommunications service provider simply points to the personal HLR of the user.

Abstract: The voice signaling gateway (10) converts signaling and bearer traffic information between iDEN network (20) and various other networks (30–60). The voice signaling gateway includes a signaling portion (14) and a bearer traffic portion (12). The voice signaling gateway interfaces with any networks which support session initiation protocol (SIP). Further, the voice signaling gateway is capable of. interworking with both 3G and 2G type networks.

Abstract: A user terminal (10) using an internet protocol using session initiation protocol to interconnect a number of user terminals (11–13) in a conference call. A conference bridge (30) or user terminal (10) detects speech of one of the user terminals (203). A “babble ” timer is started (207). The speaker is allowed to continuously speak until silence is detected (217) or until the “babble” timer timers out (211).

Abstract: A common services and applications agent (10) handles a number of input sources of voice and data information (11–16). These sources of voice and data information are converted (20) to session initiation protocol. The session initiation protocol for the voice and data information is provided to the communication network (40).

Abstract: A dispatch call setup method selects (101) either a forced dispatch call (105) or an invite dispatch call (103). The originating unit (20) of the dispatch call may select either option. Depending on how the required target users (30, 40) respond, the originating terminal has the option to complete the call (119). The terminating unit may accept, reject or convert the forced dispatch call (127). Further, the target may establish preset preferences which accept, reject or allow user controls for an invite dispatch call (139).

Abstract: A user terminal (10) initiates an internet protocol using session initiation protocol to interconnect a number of user terminals (11–13) in a conference call. Signaling connections (41, 42, and 43) are established between one user terminal and each of the plurality of user terminals. Common bearer formats are negotiated among the plurality of user terminals (113). If a common bearer format exists (115), the conference bridge is established for data (voice) transmission (127).

Abstract: An arrangement for compressing (20) and uncompressing (40) system set up messages between a client and a server employing Session Initiation Protocol transmits a template (200) between client (10) and server (30). A template is pre-placed (78) by clients or servers with other clients or servers. During execution time when a client requests services by connecting to a server only a minimal template (106) is transmitted from client to server. The server then reconstructs (40) the original uncompressed message.

Abstract: For a push-to-talk function in a mobile communication system (30), an indication is received (35) by a user (50) that the talking floor is available. Next, an uplink temporary block flow is established (36). Prior to release of the uplink temporary block flow by the mobile communication system, a refresh message is sent (39) to hold the uplink temporary block flow. Downlink temporary block flows may also be refreshed by this method, or by the mobile communication system. Then the requesting user may enable the push-to-talk function. These techniques can improve talker arbitration and call setup delays for push-to-talk.

Abstract: A hitchhiker device (20) has a wireless communication capability. The hitchhiker device is located in a non-network area (10) and requires the transmission of a wireless message. The hitchhiker device requests via an RF link (25) a donor device (30). The hitchhiker device transmits the message to the donor device. The donor device stores the wireless message. Subsequently, the donor is relocated to a wireless area and transmits the stored message via a network link (35).

Abstract: The voice signaling gateway (10) converts signaling and bearer traffic information between iDEN network (20) and various other networks (30-60). The voice signaling gateway includes a signaling portion (14) and a bearer traffic portion (12). The voice signaling gateway interfaces with any networks which support session initiation protocol (SIP). Further, the voice signaling gateway is capable of. interworking with both 3G and 2G type networks.

Abstract: A dispatch call setup method selects (101) either a forced dispatch call (105) or an invite dispatch call (103). The originating unit (20) of the dispatch call may select either option. Depending on how the required target users (30, 40) respond, the originating terminal has the option to complete the call (119). The terminating unit may accept, reject or convert the forced dispatch call (127). Further, the target may establish preset preferences which accept, reject or allow user controls for an invite dispatch call (139).

Abstract: A proactive speculation method decreases the call setup time for private calls (200) and selective dynamic group calls (300). In a push-to-talk dispatch network (40) an originating mobile unit (10) sends a wake-up packet (54, 114) to the dispatch network (40). Prior to initiating the push-to-talk function, the target mobile units (20-30) receive a wake-up packet (68, 146-148) from network (40). Thereby, prior to establishing the push-to-talk function, each of the mobile units in the push-to-talk call have been coupled via RF links. If the originating mobile unit has a current IP address, direct wake-up packets (72) may be sent.

Abstract: A method for compressing an address of record (111-117) includes a number of members in a group call (100). A compressed list (120) is generated by listing a common domain name (130), a member ID, a unique index number (121) that represents the member and optionally a presence indicator (131). The compressed list (120) is transmitted (182-186) to each of the members of the group call. When a particular member requests to speak (188) the network transmits (190-194) only the unique index number and optionally the presence information of the requesting member.

Abstract: A mobile device (80) is coupled to a dispatch server (50) via a mobile network (60, 70) and an internet protocol network (40). The mobile device triggers a push-to-talk request which is processed by the dispatch server. The dispatch server then transmits this push-to-talk request to a family radio service (FRS) gateway (30). FRS gateway (30) converts this digital request to an analog request and broadcasts the request via a base station 20 to a family service radio (10). The FRS radio can broadcast back to the FRS gateway, which will vocode the analog request, and transmit it back to the mobile device via the dispatch server. This invention allows mobile devices (cellular) equipped with PTT applications to network with FRS radios.

Abstract: An originating party (10) places a call through an originating party called control (30), through a network (40), through a terminating party call control (50) to a terminating subscriber (22). For an inability to complete the connection from the originating subscriber to the terminating subscriber, control is returned from the terminating party call control through network (40) to the call control logic (31) of the originating party call control (30) or directly to the originating subscriber (10).

Abstract: An originating party (10) places a call through an originating party called control (30), through a network (40), through a terminating party call control (50) to a terminating subscriber (22). For an inability to complete the connection from the originating subscriber to the terminating subscriber, control is returned from the terminating party call control through network (40) to the call control logic (31) of the originating party call control (30) or directly to the originating subscriber (10).