| русский | rus-000 |
| тональный вызов | |
| English | eng-000 | dial tone |
| English | eng-000 | frequency signaling |
| English | eng-000 | harmonic signaling |
| English | eng-000 | tone origination |
| English | eng-000 | tone ringing |
| English | eng-000 | touch-tone call |
| English | eng-000 | voice-frequency ringing |