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| public switched telephone network (ТСОП); public switched Telecommunication/Telephone network (PSTN) | |||
| public switched telephone network (Public switched telephone network (PSTN) is used by standard analog telephone lines, available worldwide) | |||
| public switched telephone network; PSTN | |||
| public telephone network; common-telephone network; public phone network (oleg.vigodsky) | |||
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| Public Switched Telephonic Network (ITTran) | |||
| телефонная сеть общего пользования: 22 a las frases, 8 temas |
| Banco europeo para la reconstrucción y desarrollo | 1 |
| Comunicaciones | 2 |
| General | 1 |
| Internet | 1 |
| Medios de comunicación en masa | 3 |
| Red de computadoras | 4 |
| Sistemas de seguridad | 1 |
| Telecomunicación | 9 |