I am using vodafone corporate plan and my no is 996602****. and am facing the problem of "when I give call to any number then half of the time without connecting to that number, duration get started. Finally I talked to Customer Care and he said you want be charged for such calls.
After receiving the statement, I checked those calls and there are around 20 ISDN calls with duration of < 10 seconds. But no luck till date. I would suggest, if you are in Hyderabad then please please dont go for vodafone. Try ur luck with Airtel and others. It has got better service and network too. Many times I face problem of disconnection while talking. Regards, Deepak