|
Alerting System : 49 phrases in 13 subjects |
| Astronautics | 1 |
| Aviation | 7 |
| Caspian | 1 |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Mass media | 5 |
| Medical | 2 |
| Medical appliances | 1 |
| Military | 16 |
| Nautical | 2 |
| Security systems | 2 |
| Technology | 8 |
| Telecommunications | 2 |