T1 channel bank control and apparatus
T1 channel bank control process and apparatus
T1 channel bank control process and apparatus
T1 channel bank control process and apparatus
T1 channel bank control process and apparatus
Technique for reducing echoes in conference communications
Techniques for providing uninterrupted digital...
Techniques for providing uninterrupted digital...
Telecommunicaations equipment terminal
Telecommunication line circuit
Telecommunication system and a linecard
Telecommunications apparatus and plug-in unit for same
Telecommunications chassis and card
Telecommunications gateway and method
Telecommunications interface with protector modules
Telecommunications line interface circuits
Telecommunications system comprising a circuit arrangement for a
Telecommunications system, an automatic branch exchange, a line
Telecommunications T1 carrier overvoltage and fiber to curb powe
Telephone