YDN 034-1997
ISDN Subscriber-Network Interface Specification (English Version)

Standard No.

YDN 034-1997

Language

Chinese, Available in English version

Published By

Professional Standard - Post and Telecommunication

Latest

YDN 034-1997

YDN 034-1997 history

• 1970 YDN 034-1997 ISDN Subscriber-Network Interface Specification