Standard ECMA-263
Private Integrated Services Network (PISN)
- Specification, Functional Model and Information Flows - Call
Priority Interruption and Call Priority Interruption Protection
Supplementary Services (CPI(P)SD)
3rd edition (December 2001)
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-263 1st edition |
Acrobat (r) PDF file |
| ECMA-263 2nd edition |
Acrobat (r) PDF file |
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