Call Back Server

A convenient alternative for roaming calls

Overview
  • The Call Back technology provides mobile operators with an efficient alternative to traditional roaming call services. It is especially valuable for prepaid subscribers who may be unable to make outgoing calls while roaming, even though incoming calls are available.
  • With Call Back, outgoing calls are initiated by requesting a call via SMS, USSD, or a web interface. The system supports flexible routing and access algorithms, including subscriber location analysis.
  • Open interfaces (CAMEL, Diameter, XML) ensure seamless integration with third-party prepaid platforms.
  • The “Unconditional Call Back” option further enhances usability: subscribers dial numbers as usual, and the system automatically converts the call into a callback request using CAMEL capabilities—without complex USSD commands.
Key Benefits
  • Service ordering via SMS, USSD, or web interface
  • Flexible routing policies
  • SMS notifications in case of call failure
  • Integration with prepaid platforms for online charging
  • CDR generation and statistics
  • Horizontal scalability
  • Flexible SS7 signaling configuration