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 To :  yate@v...
 From :  bilal ghayyad <bilmar_gh@y...>
 Subject :  Difference between SS7 ISUB, and ISDN and R2?
 Date :  Sat, 17 Apr 2010 05:36:10 -0700 (PDT)
Hi All;

Can someone advise what is the difference between ISUB and ISDN and R2? Why they use ISDN sometimes and sometimes ISUB?

And what is the difference between ISDN and R2? (As a technology).

Regards
Bilal