 |
| |||
| calling signal; offering signal | |||
| calling-on signal | |||
| call sign (The identifying code letters or numbers of a radio or television transmitting station, assigned by a regulatory body) | |||
| ringing tone; ringing signal; ringing tone signal | |||
| sinal de chamada: 51 phrases in 6 subjects |
| Communications | 13 |
| Electronics | 29 |
| Information technology | 5 |
| Microsoft | 1 |
| Telecommunications | 2 |
| Telegraphy | 1 |