While international roaming, charges of roaming mobile originated calls(Roaming MO calls) are normally higher as compared to receiving mobile terminated roaming call (Roaming MT calls). So, roamers need to have a callback service especially for calling back to their home networks.  Also, to enable international prepaid roaming subscribers to make calls, the home network and visited network must comply with CAMEL Phase2. When this is not the case, the prepaid outbound roamer is not able to make outgoing calls.

Telemune's USSD Callback Server facilitates seamless roaming across non-CAMEL 2 compliant networks and facilitates the roamers to request for call back. To initiates a callback call user needs to send a trigger to Telemune Call Back Server. With this solution the home network has full control over the call and can perform all the pre-call checks and also rate the call in real time for prepaid subscribers

 Drop-in solutions – no partner agreements necessary

 Support for Post paid and Pre-paid subscribers.

 Blacklisting subscribers and visited networks.

 Detailed Traffic reporting and usage..

 Long duration call detection

 Inbuilt flexible different billing engine which supports     creation of CDRs for postpaid subscribers and real time     charging for prepaid subscribers.

 Support for multiple charging protocols like HTTP, SOAP,     CAP3 etc.

 Support for multiple access protocol like SIP, RTP, SMPP,     CIMD, HTTP etc.

 Supports pre-call announcement to the subscriber before     connecting call.

 Support for redundant and non redundant deployment.

 Scalability – from entry level system to millions of     subscribers.