TZ 004-8502
Automatic Telephone Switching Network Technical System (Trial Implementation) (English Version)
- Standard No.
- TZ 004-8502
- Language
- Chinese, Available in English version
- Release Date
- 1985
- Published By
- Professional Standard - Post and Telecommunication
- Latest
- TZ 004-8502
TZ 004-8502 history
- 1985 TZ 004-8502 Automatic Telephone Switching Network Technical System (Trial Implementation)
