 |
| voice channel: 61 phrases in 13 subjects |
| Computer networks | 1 |
| Computers | 2 |
| Cryptography | 1 |
| Electrical engineering | 1 |
| Electronics | 3 |
| General | 1 |
| Information technology | 5 |
| Makarov | 1 |
| Mass media | 3 |
| Military | 4 |
| Security systems | 3 |
| Technology | 12 |
| Telecommunications | 24 |