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Standard ECMA-339
Corporate Telecommunication Networks - Signalling Interworking between QSIG and SIP - Basic Services

2nd edition (December 2006)

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-339 1st edition Acrobat (r) PDF file

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