English 
voice frequency telegraphy
translation - voice frequency telegraphy translate | English dictionary
- voice frequency
- voice frequency amplifier
- voice frequency channel
- voice frequency signal
- voice frequency signaling
voice frequency telegraphy
- voice frequency telegraphy channel
- voice guard
- voice highway
- voice input
- voice interface
- voice interpolation
- voice level
- voice mail
- voice mail server
- voice memory
- voice mode
- voice multiplexer
- voice output
- voice output system
- voice over Internet
- voice paging
- voice path
- voice protection
- voice recognition
- voice recognizing dialog system
- voice recorder
- voice recording
- voice response
- voice security
- voice service
