Am using Nokia 5230 and using Airtel's Mobile Office. Am facing a wierd problem. After exactly 3 hours (+1/-1 minute), GPRS connection disconnects after which balance is shown and in case am using Gravity (or any other mobile app that requires GPRS connection) then the GPRS connects again. This process keeps on repeating. I've talked to Airtel cc but beside resetting GPRS settings, they aren't doing anything. I'd appreciate any help in this matter. Thanks in advance 