Hardened VoIP System
First Claim
1. A system for providing hardened VoIP and land mobile radio communication services to mobile devices, the system comprising:
- a controller configuredin a first standby state toreceive via a cellular communications systema first heartbeat signal from a first mobile device anda second heartbeat signal from a second mobile device,transmit via the cellular communications systema first status control signal to the first mobile device anda second status control signal to the second mobile device, andmaintain a database witha first identifier associating the first mobile device with the cellular communications system anda second identifier associating the second mobile device with the cellular communications system;
in a second standby state toreceive via the cellular communications system the second heartbeat signal from the second mobile device,transmit via the cellular communications system the second status control signal to the second mobile device,monitor a channel of a land mobile radio system associated with the first mobile device, andmaintain the database withthe first identifier associating the first mobile device with the land mobile radio system andthe second identifier associating the second mobile device with the cellular communications system; and
to transition from the first standby state to the second standby state upon failing to receive the first heartbeat signal from the first mobile device.
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Accused Products
Abstract
A hardened VoIP system is presented that includes secure push-to-talk voice functionality. Through the addition of encryption, authentication, user filtering, and integration with the new and existing LMR systems, a secure voice platform ensures malicious software, unauthorized access and brute force security attacks will not compromise the voice communications of the system. The VoIP system is engineered to ensure graceful system degradation in the event of maintenance activities, natural disasters and failure modes. The hardened VoIP system offers the functions a LMR trunking system while utilizing broadband connections. Private calls, group calls, Emergency Alarms with covert monitoring capability, scanning and priority scanning may be incorporated into the system. The system includes a VoIP controller that serves as a trunking controller, manages available VoIP based conference bridges, and assigns them as needed to the parties involved in each voice call.
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Citations
20 Claims
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1. A system for providing hardened VoIP and land mobile radio communication services to mobile devices, the system comprising:
a controller configured in a first standby state to receive via a cellular communications system a first heartbeat signal from a first mobile device and a second heartbeat signal from a second mobile device, transmit via the cellular communications system a first status control signal to the first mobile device and a second status control signal to the second mobile device, and maintain a database with a first identifier associating the first mobile device with the cellular communications system and a second identifier associating the second mobile device with the cellular communications system; in a second standby state to receive via the cellular communications system the second heartbeat signal from the second mobile device, transmit via the cellular communications system the second status control signal to the second mobile device, monitor a channel of a land mobile radio system associated with the first mobile device, and maintain the database with the first identifier associating the first mobile device with the land mobile radio system and the second identifier associating the second mobile device with the cellular communications system; and to transition from the first standby state to the second standby state upon failing to receive the first heartbeat signal from the first mobile device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of providing hardened mobile VOIP and land mobile radio communication services, the method comprising:
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in a first state transmitting a status signal via a cellular data channel to a first mobile device, receiving a heartbeat signal via the cellular data channel from the first mobile device, monitoring a first land mobile radio channel for a first communication from a second mobile device, and associating, in a database, an identifier of the first mobile device with cellular data communications; transitioning from the first state to a second state upon a failure to receive the heartbeat signal; in the second state monitoring the first land mobile radio channel for a second communication from the first mobile device and second mobile device, and associating, in the database, the identifier of the first mobile device with land mobile radio communications; transitioning from the first state to a third state upon receipt of a cellular data push-to-talk signal via the cellular data channel from the first mobile device; in the third state receiving, via the cellular data channel, a communication from the first mobile device, converting the communication from a VoIP format to LMR format, and transmitting the communication to a second mobile device via a land mobile radio format. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification