PRETS 300 240 : DEC 91
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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PRIVATE TELECOMMUNICATIONS NETWORK (PTN) - SIGNALLING AT THE S-REFERENCE POINT GENERIC FEATURE KEY MANAGEMENT PROTOCOL FOR THE CONTROL OF SUPPLEMENTARY SERVICES (STANDARD ECMA161)
01-06-1993
12-01-2013
Defines the Feature Key Management signalling protocol for the control of supplementary services at an interface at the S reference point between a Terminal Equipment (TE) and a Private Telecommunication Network (PTN). Applies to the user access of PTNs and to TEs that are intended for connections to PTNs.
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