Securely authorize dialing-out for your prepaid roamers and subscribers with zero balance
Prepaid roamers still cannot dial out in most mobile networks!
Prepaid users are charged in real-time to prevent exceeding their credit (negative balance). But real-time charging while roaming requires interoperability between the visited network and the home network. This interoperability, based on CAMEL technology, is not yet business proven for many mobile network operators.
A new roaming revenue opportunity
Prepaid subscribers represent most of the mobile operator's customer base. Roaming is a major revenue stream for all mobile operators and leaving prepaid roamers with no ability to dial-out or send SMS represents foregone revenue. Opencode's USSD Callback System provides a simple solution that enables mobile operators to capture this important revenue opportunity.
Save on network upgrades while securely enabling prepaid roaming
Thanks to the native support of USSD in all GSM networks, and in contrast to CAMEL, the operator does not need to upgrade his core network. At the same time the USSD Callback System securely controls all roaming calls from the home network, eliminating any fraud possibility.
Simple and straight forward dialing-out roaming solution
To make a call, a prepaid roamer dials the destination number formatted as following:
*111*0982420060#
The string is detected as a standard USSD service request. The sequence is routed to the USSD Callback Service on the roamer's home network, where the callback service initiates two calls: one towards the destination number, and a second back to the roamer. While bridging the parties a friendly message is played to the waiting call.
Forward looking open architecture
Opencode's USSD Callback System is based on separate USSD and Dialout IVR nodes. Both nodes are interconnected by SMPP and open to external applications, allowing unrivaled integration flexibility and implementation of other USSD based roaming services such as USSD VoiceMail Callback.
Flexible A, B or Third party charging capabilities
Opencode's USSD Callback System allows flexible charging that is adaptable to most of today's marketing needs. Depending of the charging requirements calls initiated by the callback system can be charged to the A Party, the B Party or any other chargeable party.
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