Automated configuration for all operators

Automated configuration for all operators. Automated configuration for all operators Banglalink: Write All and Send 3343 (free) 2. GrameenPhone: Send the message to all and send it to 8080 AD. Or dial * 111 * 6 * 2 # (free) 3. Teletalk: set send message to 111 or 578 (free) 4. Robi: Call * 140 * 7 # (Charge Applicable) 5 Airtel: Dial * 121 * 7 * 3 # (free) PIN number 1234 to save the configuration of banglalink, grameenphone, robio airtel