| |||
tone dial | |||
tone dialing | |||
tone dialling | |||
voice-frequency dialling | |||
touchtone (A form of dialing that uses multiple-tone signaling. The user hears a series of tones (beeps) when dialing) | |||
tone generation | |||
inband signaling; inband dialing; voice-frequency signaling |
Tonwahl : 8 phrases in 2 subjects |
Communications | 5 |
Information technology | 3 |