Method and system for interrupting a dispatch call
First Claim
1. A method for interrupting a dispatch call, comprising the steps of:
- in a simplex dispatch communications system having at least a first communications channel for carrying voice traffic and a second communications channel for carrying communications-enabling information, assigning the first communications channel to at least a first caller and a second caller to permit the first and second callers to engage in a dispatch call; and
as the first caller has control over the first communications channel, transmitting an interrupt message over the second communications channel to inform the first caller of an interrupt status of the second caller, wherein the transmitting step is performed without terminating the dispatch call.
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Accused Products
Abstract
The invention concerns a method (300) and system (100) for interrupting a dispatch call. The method can be practiced in a dispatch communications system (100) having at least a first communications channel (162) for carrying voice traffic and a second communications channel (164) for carrying communications-enabling information. The method includes the steps of assigning (312) the first communications channel to at least a first caller (133) and a second caller (135) to permit the first and second callers to engage in a dispatch call and as the first caller has control over the first communications channel, transmitting (314) an interrupt message (505) over the second communications channel to inform the first caller of an interrupt status of the second caller. The transmitting step is performed without terminating the dispatch call.
15 Citations
12 Claims
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1. A method for interrupting a dispatch call, comprising the steps of:
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in a simplex dispatch communications system having at least a first communications channel for carrying voice traffic and a second communications channel for carrying communications-enabling information, assigning the first communications channel to at least a first caller and a second caller to permit the first and second callers to engage in a dispatch call; and as the first caller has control over the first communications channel, transmitting an interrupt message over the second communications channel to inform the first caller of an interrupt status of the second caller, wherein the transmitting step is performed without terminating the dispatch call. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile unit for interrupting a dispatch call, comprising:
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a transceiver, wherein the transceiver is for use in a simplex dispatch communications system having at least a first communication channel for carrying voice traffic and a second communications channel for carrying communications enabling information, wherein the first communications channel is assigned to at least a first caller and a second caller to permit the first and second caller to engage in a dispatch call; and a processor, wherein as the first caller has control over the first communications channel, the processor is programmed to generate an interrupt message and to cause the transceiver to transmit the interrupt message over the second communications channel to inform the first caller of an interrupt status of the second caller without the dispatch call being terminated. - View Dependent Claims (8, 9)
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10. A communications network for interrupting a dispatch call, comprising:
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a site for use in at least a simplex dispatch communications system, wherein the site has at least one base station for transmitting and receiving voice traffic over a first communications channel and for transmitting and receiving communications-enabling information over a second communications channel; and a communications processor, wherein the communications processor is programmed to assign the first communications channel to at least a first caller and a second caller to permit the first and second callers to engage in a dispatch call and as the first caller has control over the first communications channel, the communications processor is further programmed to generate an interrupt message and to cause the base station to transmit the interrupt message over the second communications channel to inform the first caller of an interrupt status of the second caller and wherein the interrupt message is transmitted without terminating the dispatch call. - View Dependent Claims (11, 12)
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Specification