CNS 14577-2001
Key telephone system (English Version)
- Standard No.
- CNS 14577-2001
- Language
- Chinese, Available in English version
- Release Date
- 2001
- Published By
- Taiwan Provincial Standard of the People's Republic of China
- Latest
- CNS 14577-2001
- Scope
- This standard applies to mutual inquiries between internal lines and between trunk lines and internal lines. A user-prepared private key telephone exchange system that performs switching through a connecting device and can be connected to public network switching equipment, referred to as a key telephone system. (It is also applicable to push-button telephones with two or more office lines that do not require a switchboard system)
CNS 14577-2001 history
- 2001 CNS 14577-2001 Key telephone system
