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Standard ECMA-285
Protocol for Computer Supported Telecommunications Applications (CSTA) Phase III

4^th edition (December 2011)

The latest edition of this Ecma Standard is available here.

You can download the previous replaced "historical" edition of this Ecma Standard, free of charge:

File name	Content
ECMA-285 1st edition	Acrobat (r) PDF file
ECMA-285 2nd edition	Acrobat (r) PDF file
ECMA-285 3rd edition	Acrobat (r) PDF file

 

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