Sealed terminating device
Sealing current generator for a telephone circuit
Security cover for telephone line installation backboard and met
Security latch for network interface devices and plastic...
Security mechanism for snap latch devices
Self configuring telephone headset amplifier
Self-adaptive echo canceller capable of keeping a degree of canc
Self-balancing hybrid using digitally programmable attenuator fo
Self-calibration procedure in physical layer transceiver for...
Semi-floating AC/DC active termination circuit with current sink
Semiconductor integrated device
Semiconductor subscriber line interface circuit with enhanced su
Separation of ring detection functions across isolation...
Separation of ring detection functions across isolation...
Series equipment with DC line hold transfer
Side tone correction circuit
Sign bit integrator and method
Signal circuit protector device for consumer use
Signal coupler using low voltage filtering
Signal splitter with test relays on auxiliary circuit board...