NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
DIN ETS 300659-1 [Withdrawn] references following documents:
| Document number | Edition | Title |
|---|---|---|
| ETR 206 | 1995-09 | Public Switched Telephone Network (PSTN) - Multifrequency signalling system to be used for push-button telephones (CEPT T/CS 46-02 E-1985) More |
| ITU-T T.50 | 1992-09 | International Reference Alphabet (IRA) (Formerly International Alphabet No. 5 or IA5) - Information technology - 7-bit coded character set for information interchange More |
| ITU-T V.23 | 1988-11 | 600/1200-Baud modem standardized for use in the general switched telephone network More |
