 |
| |||
| busy signal (The indication that the phone is busy) | |||
| busy signal; busy-flash signal; engaged signal; telephone busy signal | |||
| σήμα κατειλημμένου: 4 phrases in 2 subjects |
| Communications | 2 |
| Electronics | 2 |
|
| |||
| busy signal (The indication that the phone is busy) | |||
| busy signal; busy-flash signal; engaged signal; telephone busy signal | |||
| σήμα κατειλημμένου: 4 phrases in 2 subjects |
| Communications | 2 |
| Electronics | 2 |