 |
Community exchange
| rate system
| community exchange | |
| cables | внутрирайонная телефонная станция |
| rate system | |
| avia. | система регулирования по первой производной |
| |||
| внутрирайонная телефонная станция | |||
| Community exchange: 10 phrases in 7 subjects |
| Banking | 2 |
| Business | 1 |
| General | 1 |
| Military | 2 |
| Pharmacology | 1 |
| Technology | 2 |
| Telecommunications | 1 |