US PATENT SUBCLASS 379 / 221
.~.~ Alternate routing

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

219  DF  PLURAL EXCHANGE NETWORK OR INTERCONNECTION {6}
220  DF  .~ With interexchange network routing {1}
221.~.~ Alternate routing

DEFINITION

Classification: 379/221

Alternate routing:

(under subclass 220) Subject matter for selecting a different path in response to a blockage or other failure to connect.

SEE OR SEARCH THIS CLASS, SUBCLASS:

273+, for alternate routing within a single exchange.