Nextel Communications Inc.

Karalyn M Szuszczewicz

Trinh D Vu

David Paul Martin

Jeffrey Scott Posner

Dan Tillet

Ojas Thakor Choksi

Daniel Tillet

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.

System and method for providing dispatch call features

When an ad hoc group call is initiated, or at a subsequent time but before the group call is terminated, a call originator may set a parameter to establish a time limit. The time limit is invoked when the call originator drops from the group call. The time limit may be set to zero time indicating that all participants will be disconnected and the group call will be terminated immediately upon exit of the call originator. The time limit may also be set to a predetermined amount of time, which indicates that the group call may remain up until the predetermined amount of time expires. If no parameter to establish a time limit is selected, the group call may remain indefinitely even after the originator exits the group call.

Method and computer-readable medium for terminating options for dispatch group calls

A subscriber unit including an interface and a processor to transmit a first request to a wireless communication system by way of the interface to request a communication session in a first communication mode with one or more users; communicate with the one or more users by way of the interface in the communication session and in the first communication mode; transmit, while in the communication session, a second request to the wireless communication system by way of the interface to switch the first communication mode to a different second communication mode; and communicate with the one or more users by way of the interface in the communication session and in the second communication mode.

Subscriber unit capable of switching between full-duplex and half-duplex modes during an on-going session

A system and method of conducting a dispatch multi-party communication session is disclosed. In accordance with an embodiment of a method of the present invention, the method includes establishing a dispatch multi-party communication session in a dispatch network and identifying the dispatch multi-party communication session to a subscriber of the dispatch network. A join request is received at the dispatch network from the subscriber in response to identifying the dispatch multi-party communication session and the subscriber is joined to the session in response to the received join request. In accordance with an embodiment of a system of the present invention, the system includes a dispatch network wherein the network establishes a dispatch multi-party communication session and identifies the dispatch multi-party communication session to a subscriber of the dispatch network. The dispatch network joins the subscriber to the dispatch multi-party communication session in response to a join request received at the dispatch network from the subscriber.

Public dispatch chatroom

A method and system for conducting a dispatch multi-party communication session is disclosed. In accordance with an embodiment of a method of the present invention, the method includes establishing a dispatch multi-party communication session in a dispatch network, conducting a first portion of the session in a broadcast mode, and conducting a second portion of the session in an open mode. In accordance with an embodiment of a system of the present invention, the system includes the dispatch network wherein the network establishes a dispatch multi-party communication session and wherein the network conducts the first portion of the session in the broadcast mode and the second portion of the session in the open mode.

Broadcast dispatch chatroom

A method and computer-readable medium for displaying group call status information and participant status information for a group call are provided. Users participating in a dispatch group session (call) are provided with details about the group itself (group status) and the users participating in the group (participant status). When changes are made to the group call, the group call status information and the participant status information may be updated and displayed in real time.

Method and computer-readable medium for in-call status for dispatch group calls

A wireless communication system is disclosed comprising a call controller to establish a communication session in a first communication mode between two or more users; receive a request from at least one of the users to switch the first communication mode of the communication session to a second communication mode; and switch the first communication mode of the communication session to the second communication mode. The first and second communication mode may respectively comprise half-duplex and full-duplex modes, or vice-versa. Other disclosed embodiments relate to a call controller for to setup multiple communication mode sessions in a wireless communication system, and a subscriber unit able to request and accept a switch to a different communication mode in an ongoing communication session.

Wireless communication system providing seamless switching between full-duplex and half-duplex modes

In an embodiment of a method of the present invention, the method includes the acts of establishing a dispatch multi-party call between a set of communication devices and establishing a sidebar communication between a subset of the set of communication devices. The set of communication devices participate in the dispatch multi-party call and only the subset of communication devices participate in the sidebar communication. In an embodiment of a system of the present invention, the system includes a dispatch network and a set of communication devices in communication with the dispatch network. The dispatch network establishes a dispatch multi-party call between the set of communication devices and a sidebar communication between a subset of the set of communication devices, wherein the set of communication devices participate in the dispatch multi-party call and only the subset of communication devices participate in the sidebar communication.

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Haymarket, VA, United States of America

Karalyn M Szuszczewicz