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Profile dịch vụ:Profile Technical Callmeback service system1

1.Introduction

Call Me Back (CMB) service is a utility to help prepaid subscribers, especially prepaid subscribers with no account balance, expired subscriber, one-way locked subscribers can send a callback request to another mobile subscriber

With CMB service, subscribers can still be contacted even when the money is out of the account.

2. Benefits of Services

2.1  For Subscribers

• Stay connecting with their friends even their account is not enough money or is locked one way for calling.Using this service for free anytime without registration and easily to use service.
• Improve customer’s satisfaction so that increase their loyal
• Compete against other operators
• Make Mobile VAS richer
• Increase revenue from service
• 3.System Functionality
• 3.1  For Subscriber
  • Send USSD request: for urgent case, subscriber A hasn’t enough money in balance to make a call or one-way locked, he can send USSD request (*140*subscriber B number#) for his friend to call back to him. He can take USSD request maximum 5 times per day.
  • Choose language: Subscriber can choose language by press USSD code *140*00# for choosing Burmese language or *140*01# for choosing English language.
  • Inquiry for help: Subscriber an request helping information by press USSD code *140*#
  • Receive SMS:
  • Notification: Subscriber B will receive SMS notification that he is requested to call back for his friend with displayed mobile number in message.
  • Confirmation: Subscriber A also receive SMS confirmation that his request is sent to his friend.
  • Failure: