Radio telephone base station with a monitoring apparatus
Rate adaptaptive subscriber line ("RADSL") modem and method of o
Reduced cost digital subscriber line (DSL) interface...
Remote access terminal
Remote actuated switch
Remote isolation test apparatus
Remote line test facility
Remote maintenance method and device thereof in private branch e
Remote measurement unit containing integrated line measurement a
Remote monitoring apparatus
Remote telephony testing device
Remote test call unit and service
Remote testing system for electrical circuits
Remotely addressable maintenance unit
Remotely controlled apparatus for conditioning telephone line ex
Remotely controlled communication line diagnostic apparatus and
Remotely controlled multiple pair telephone pedestal/building te
Retrofit subscriber loop carrier system with improved performanc
Ringing interface card for telephone test equipment
Ringing SLIC fault handling