DIN EN 300267-2:1999-08
Отменен
Integrated Services Digital Network (ISDN) - Telephony 7 kHz and videotelephony, audiographic conference and videoconference teleservices - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (Endorsement of the English version EN 300267-2 V 1.2.2 (1998-04) as German standard)
