Method and a system for providing service to telecommunication s
Method and a system for remotely switching an electrically opera
Method and a system for remotely switching and/or regulating and
Method and a system for settlement of trading accounts
Method and a system for submitting messages deposited in an...
Method and a system for transmitting alarms
Method and a system for use in a telecommunications network
Method and an apparatus for transmitting/receiving signals in a
Method and an arrangement for controlling the operating mode of
Method and an arrangement for generating a ringing signal
Method and an arrangement for performance monitoring in a teleco
Method and an arrangement for securing an ADSL connection
Method and an arrangement relating to telecommunications systems
Method and apparatus allowing remote key system units to...
Method and apparatus as for testing a telephone line interface c
Method and apparatus automatic call-back
Method and apparatus capable of performing information...
Method and apparatus communication handover in a communication s
Method and apparatus enabling a calling telephone handset to...
Method and apparatus enabling local number portability in...