Telecommunication device and method for interactive voice and da
Telecommunication display system
Telecommunication display system
Telecommunication network using signalling without activating al
Telecommunication system
Telecommunication system
Telecommunication system for automatic switching between voice a
Telecommunication system for automatic switching between voice a
Telecommunication system with subscriber controlled feature modi
Telecommunication system, method and telephone with personal...
Telecommunication terminal device and method of using the same
Telecommunications access to lottery systems
Telecommunications apparatus and method
Telecommunications device for reading power meters
Telecommunications device for the hearing impaired with telephon
Telecommunications management and control apparatus
Telecommunications network architecture for accessing...
Telecommunications network routing
Telecommunications routing based on format of message
Telecommunications system subscriber profile updating