US PATENT SUBCLASS 379 / 273
.~.~.~.~.~ Alternate routing

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
258  DF  .~ Switching controlled in response to called station addressing signal {9}
268  DF  .~.~ Having shared or common switching control {8}
271  DF  .~.~.~ Having multistage switching {2}
272  DF  .~.~.~.~ Path selection or routing {3}
273.~.~.~.~.~ Alternate routing {1}
274  DF  .~.~.~.~.~.~> With busy or idle test

DEFINITION

Classification: 379/273

Alternate routing:

(under subclass 272) Subject matter which modifies the path configuration in response to a blockage of a previous chosen configuration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

221, for alternate routing in interexchange network routing.

SEE OR SEARCH CLASS

340, Communications: Electrical,

827, for alternate routing channel selecting switching not limited to telephone equipment.