Splitter card with integral test access
Splitter system with test access
State monitoring method and apparatus in subscriber line test
Statistical diagnosis in interactive voice response telephone sy
Status management method of a signalling service device in an el
Stored program controller
Structure and circuit topology for a remotely actuated...
Subscriber call simulator capable of testing new services of a t
Subscriber circuit having splitter disconnection function
Subscriber interface box
Subscriber line impedance measurement device and method
Subscriber line impedance measurement method and measuring circu
Subscriber line maintenance apparatus and methods
Subscriber line monitoring circuit
Subscriber line test system
Subscriber line test system for access network
Subscriber line tester
Subscriber line validation of a telephone network
Subscriber loop tester for telephone switching systems
Subscriber system testing method