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

2^nd 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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