Mutual disabling unit for multiple phones
AssigneeHigh Sec Labs Ltd.
InventorAviv Soffer
Life of this patent
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Abstract
A secure phone system comprising a plurality of Voice over IP (VoIP) phones, each having an enhanced security implant device, a Mutual Disabling Unit (MDU) and a method of operating the system for securing VoIP phones located in the same room by disabling a VoIP phone while a call is active in another phone in order to prevent audio eavesdropping.
Claims20
A secure phone system comprising:
- a plurality of Voice over IP (VoIP) phones, each having an enhanced security implant device;
- and
- a Mutual Disabling Unit (MDU) connected to each of said enhanced security implant devices in each of said VoIP phones,
- wherein said enhanced security implant device is configured to
- (a) detect at least one of an off-hook state and a call-in-progress state of the VoIP phone having the enhanced security implant device,
- (b) report at least one of said detected states to the MDU, and
- (c) disable a call operation of the VoIP phone having the enhanced security implant device by muting the audio or disconnecting a phone line of the VoIP phone, and
- wherein said MDU is configured to instruct the enhanced security implant device of any of said VoIP phones to disable the call operation of the instructed VoIP phone responsive to receiving a report that another of said VoIP phones is in any of said states, in order to prevent audio eavesdropping.
A secure phone system comprising:
- a plurality of phones, each connected to a corresponding phone line through a sensor-switch device capable of:
- sensing and reporting an off-hook state or a call-in-progress state on the corresponding phone, and
- connecting and disconnecting the corresponding phone from said corresponding phone line;
- and
- a Mutual Disabling Unit (MDU) connected to each of said sensor-switch device,
- wherein said MDU is configured to instruct any of said sensor-switch devices to disconnect the corresponding phone from the corresponding phone line responsive to receiving a report from another of said sensor-switch device corresponding to another phone, in order to prevent audio eavesdropping.
A VoIP phone device for use in a secure phone system that comprises Mutual Disabling Unit (MDU), the VoIP phone device comprises a command port configured to be connected to the MDU, wherein upon receiving disable command over the command port, the VoIP phone mute the audio operations or disconnecting a phone line of the VoIP phone to prevent audio eavesdropping, and wherein the MDU is configured to instruct the VoIP phone, through the command port, responsive to receiving a report that another VoIP phone in the secure phone system is in at least one of an off-hook state and a call-in-progress state.
An enhanced security implant for a VoIP phone device for use in a secure phone system that comprises Mutual Disabling Unit (MDU), the enhanced security implant comprises a command port configured to be connected to the MDU, wherein upon receiving disable command over the command port, the implant for the VoIP phone force a mute of the audio operations or disconnecting a phone line of the VoIP phone to prevent audio eavesdropping, and wherein the MDU is configured to instruct the enhanced security implant, through the command port, responsive to receiving a report that another VoIP phone in the secure phone system is in at least one of an off-hook state and a call-in-progress state.
A method for securing a phone system comprising a group of phones, the group of phones is divided to subgroups of phones and each subgroup is assigned with a priority, the method comprises the steps:
- 1) Disable all phones;
- 2) Detect call request event in any one of said group of phones,
- 3) if no call is in progress in any other phone in the group of phones, enable the phone and disable all other phones in the group of phones;
- 4) If another call is in progress and the call request is associated to phone with higher priority, enable the higher priority phone and disable the lower priority phone;
- 5) Wait for call end;
- and
- 6) jump back to step 1),
- wherein, enabling the phone allows the call and pass the audio operations and disabling the phone mute the audio operations to prevent audio eavesdropping.
Dependencies are inferred from the claim text.