Subscriber telephone equipment test apparatus
Subscriber terminal circuit for connecting an analog subscriber
Subscriber testing system
Subscriber's line testing apparatus
Subscriber/craftsperson ringback apparatus
Switch testing
Switch-adjunct interface
Switch-adjunct interface
Switch-based line continuity verification method and system
Switching apparatus having function for processing malicious...
Switching module for a telecommunications switching platform
Switching system and subscriber's circuit controlling apparatus
Switching system for readily accessing the service line for test
System and apparatus for enhancing a network link
System and circuitry for measuring echoes on subscriber loops
System and device for, and method of, detecting, characterizing,
System and method for automatic detection of loop start and...
System and method for automatic monitoring of active telephone c
System and method for automatic PBX detection
System and method for automatically detecting root causes of swi