US PATENT SUBCLASS 379 / 93.11
.~.~.~ Among at least three terminal types

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

90.01  DF  TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) {8}
93.01  DF  .~ Having transmission of a digital message signal over a telephone line {9}
93.09  DF  .~.~ Switching between different terminal types (e.g., voice/data switch) {1}
93.11.~.~.~ Among at least three terminal types

DEFINITION

Classification: 379/93.11

Among at least three terminal types:

(under subclass 93.09) Subject matter wherein the arrangement includes switching among at least three different modes.