I.S. I-ETS 300 006:1992
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
BUSINESS TELECOMMUNICATIONS (BT) - TRANSMISSION CHARACTERISTICS AT DIGITAL INTERFACES OF A DIGITAL PRIVATE AUTOMATIC BRANCH EXCHANGE (PABX)
23-07-2013
12-01-2013
Provides characteristics for digital interfaces, input and output connections with digital interfaces, and half-connections with digital interfaces in digital PABXs.
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