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Standard ECMA-333
Private Integrated Services Network (PISN) - Mapping Functions for the Tunnelling of QSIG through H.323 Networks

2nd edition (December 2003)

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-333 1st edition Acrobat (r) PDF file


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