Hey Friends I Recently Activated BIS On My Curve 9300 But The Problem Is Airtel 2G Network Is Very Very Bad Beside This I Have 2nd Number Which Is From Tata Docomo And Recently I Activated 1 Day Bis Plan On This Number And I,m Very Happy The Service They Provide me So I want To Change My Current Airtel Number To Tata Docomo So My Questions Is If I Changed My Airtel Number To Tata Docomo So This Interrupt My Currently Activated BIS Plan Or Not Plz Help Me.