Alarm indication and suppression (AIS) mechanism in an...

Apparatus and method for extending operation of non-intrusive mo

Apparatus for and method of detecting operation...

Arrangement for testing telephone subscriber line circuit via B-

ATM test equipment operable as source and responder for...

Closed-loop automated testing of system equipment and management

Code division multiple access (CDMA) automatic call simulator

Communication apparatus and OAM frame transmission method

Communication control apparatus

Communication network route tracing

Data connection quality analysis apparatus and methods

Delivering method in ATM point-to-multipoint connection

Device for transferring information between two digital signal g

Dual-band RF test interface circuit

Expediting reconvergence in a routing device

Fail-safe communications network for use in system power control

Forwarding plane data communications channel for ethernet...

Hand-held telecommunication tester

Hierarchical connection method apparatus and protocol

High speed transfer of failure information in an ATM network