Mr S Vijay,
Whenever we read any SS7 docs it gives 2 varinats of the Routing Label Part of teh SIO then under the SCCP/ISUP it shows 2 variants- ITU ( 4-14-14 bits ) & ANSI (5-24-24 bits). AS per what you tolsd ITU is handling integartyion of ANSI & ETSI stnadards . Then Why does they not mentyion any variant of ETSI. Any reason please ??????