Standard ECMA-281-archive

Standard ECMA-281
Private Integrated Services Network (PISN) - Specification, Functional Model and Information Flows - Private User Mobility (PUM) - Registration Supplementary Service (PUMRSD)

3^rd edition (December 2001)

The latest edition of this Ecma Standard is available here.

You can download the previous replaced "historical" editions of these Ecma Standards, free of charge:

File name	Content
ECMA-281 1st edition	Acrobat (r) PDF file
ECMA-281 2nd edition	Acrobat (r) PDF file

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