PREN 300 267-1 : 1.2.2
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
INTEGRATED SERVICES DIGITAL NETWORK (ISDN); TELEPHONY 7 KHZ, VIDEOTELEPHONY, AUDIOGRAPHIC CONFERENCE AND VIDEOCONFERENCE TELESERVICES; DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO.ONE (DSS1) PROTOCOL; PART 1: PROTOCOL SPECIFICATION
23-07-2013
12-01-2013
To enhance the DSS1 protocol in order to support the videoconference and audiographic conference teleservice. In addition, it is necessary to make a number of updates of references to relevant ETSs that have been published after 300 267-1 was issued.
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