Cabling system for low voltage and very low voltage networks in

Call block disabler

Call control method and apparatus for a switching system

Call establishment for simultaneous analog and digital communica

Call in-bound remote reading and data collection system

Call meter signal receiver for subscriber's private metering of

Call path display telephone system and method

Call progress information in cable telephony

Call progress information in cable telephony

Call progress information in cable telephony

Call progress information in cable telephony

Call progress monitor for a computer telephone interface

Call screening for fax telephone numbers

Call status recognition in a broadband private automatic branch

Call tagging user information in a telephonic environment

Call waiting service in multimedia-capable network

Call waiting-caller identification notification device

Call-waiting tone detection technique

Call-waiting tone detection technique

Caller ID system