USSD Callback allows Operators to offer new and cheaper roaming service to be used by those roamers subscribers. WIth this functionality mobile users can ask for a callback just by sending a USSD message. This kind of service has many advantages when users are traveling outside their countries and are using roaming service.
By adding IN Switch’s USSD Callback into your network, your current mobile pre-paid application can handle international roaming without any further modifications.
Attract new subscribers by enabling customers to make inexpensive calls while roaming internationally.