Standard ECMA-241
Private Integrated Services Network (PISN)
- Specification, Functional Model and Information Flows - Message
Waiting Indication Supplementary Service (MWISD)
4th edition (February 2002)
The latest edition of this Ecma Standard is available here.
You can download the previous replaced "historical" editions of this Ecma Standard, free of charge:
| File name |
Content |
| ECMA-241 1st edition |
Acrobat (r) PDF file |
| ECMA-241 2nd edition |
Acrobat (r) PDF file |
| ECMA-241 3rd edition |
Acrobat (r) PDF file |
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