Method and apparatus for PSTN-based IP active call recovery and re-routing
Assignee3Com Corporation
InventorsDavid A. Grabelsky, Michael Homeier
Life of this patent
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Abstract
A method and system for rerouting IP telephony call information. The system includes an existing IP telephony call, the telephony call originating at a first IP telephony phone. A second IP telephony phone receiving the IP telephony call from the first IP phone and a network routing condition, the routing condition causing the IP telephony call to be rerouted. A switchover instruction, the switchover instruction initiating a switchover of the existing IP telephony call to a PSTN.
Claims39
A method of re-routing an existing IP telephony session, said method comprising the steps of:
- originating an IP telephony session between a first IP client and a second IP client;
- monitoring a network condition of said IP telephony session;
- interrupting said IP telephony session based in part on said monitoring of said network condition;
- initiating a re-route of said IP telephony session to a PSTN, and
- transmitting a notify signal to said first IP client, said notify signal initiating a switchover logic.
An IP telephony system, said system comprising:
- a first IP telephony device;
- a second IP telephony device in communication with said first IP telephony device;
- an IP telephony session taking place between said first and said second IP telephony device;
- a means for monitoring a parameter of said IP telephony session;
- a means for interrupting said IP telephony session taking place between said first and said second IP telephony device;
- a means for transmitting a notify signal to said first IP telephony device, said notify signal initiating a switchover logic;
- and
- a means for switching over said IP telephony session between said first and said second IP telephony device to a PSTN.
Dependencies are inferred from the claim text.