US PATENT SUBCLASS 379 / FOR 110
.~ Including call signalling (e.g., ringing, off-hook, dialing) (379/65)

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

FOR 109  DF  HAVING SINGLE CHANNEL TELEPHONE CARRIER (379/64) {2}
FOR 110.~ Including call signalling (e.g., ringing, off-hook, dialing) (379/65)

DEFINITION

Classification: 379/FOR.110

Including call signalling (e.g., ringing, off-hook, dialing):

Foreign art collection which performs a call related signalling operation distinct from voice information.