uncontrolled not ready
| call progress signal
| uncontrolled not ready | |
| el. | automatisch niet-klaarsignaal |
| call progress signal | |
| el. | informatieblok; verbinding-in-opzet-signaal |
| |||
| automatisch niet-klaarsignaal | |||
|
uncontrolled not ready : 3 phrases in 2 subjects |
| Communications | 1 |
| Electronics | 2 |