Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
1999-11-08
2010-12-28
Sefcheck, Gregory B (Department: 2477)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C709S217000
Reexamination Certificate
active
07860114
ABSTRACT:
A method and system for dynamically selecting a destination gateway to complete a call over a path supported at least in part by an IP telephony network and a public switched telephone network. The method and system further provide for dynamically detecting available gateways, dynamically removing failed and/or unavailable gateways, and automatically recovering failed and/or unavailable gateways after a predetermined period of time. A method is also provided for detecting available destination gateways using a ping method, where a message is transmitted to a plurality of destination gateways on a one-by-one basis to ascertain the availability status of each destination gateway.
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Donovan Steven R.
Gallant John K.
Sefcheck Gregory B
Verizon Business Global LLC
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