thanks Erox for your kind,
i found in my ODAGEN with VSD=2000, its mean is 2000 X 100 = 200.000 subs max in VLR ? OK?
and i still dont know the meaning of another group besides VSD parametter (for ex., group ABB, ACB ….) althought i have found all D900 document.
Thanks
my mail : hoangktnv@yahoo.com
thanks again
Hoangktnv