TR TSY 000574 : ISSUE 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BUSINESS GROUP AUTOMATIC CALLBACK, FSD 01-02-1240
30-06-2000
12-01-2013
This Technical References defines generic requirements for Business Group Automatic Callback (BGAC) which allows a calling party encountering a busy station on an intra-business-group called to be notified when the call station becomes idle.
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