EDCH takes great care to assure the revenue of our clients. Any errors found in clients’ TAP files will be notified to the client, with reminders if needed, and corrected upon the client’s request.

Any rejections of clients’ data will be promptly notified and explained to the client.

In case call records are received beyond the standard 30 day limit, EDCH will endeavour to persuade roaming partners to accept them.

For those clients who subscribe to our IOT Check service, our dedicated IOT Check system and specialist staff will scrutinize the TAP IN files from roaming partners to ensure that no over-charging occurs. Likewise, incorrect charges in clients’ TAP OUT files will be removed and the remaining correct call records transferred to their destination immediately, so as to safeguard clients’ revenue and expedite the correction of erroneous charges.

EDCH’s recommended transfer option is Electronic Data Interchange using a Virtual Private Network. This network architecture is based on industry-leader CISCO’s standards.

If necessary however, our options are:
• File Transfer Protocol over TCP/IP
• Email: suggested as a back-up to EDI

The EDCH Fraud report lists the subscribers who exceeded their daily usage limit, even if such high usage occurred as a result of visiting more than one network. The details include, for each subscriber IMSI:

• Total charge for all calls
• Total call duration
• Time of the first and last calls
• Total number of calls
• Volume of GPRS data

It is also possible to have a copy of the Export fraud Report sent by fax or email to any of the client’s roaming partners.

For incoming GPRS traffic EDCH have implemented an interim solution for clients who are at present unable to handle GPRS data. This feature is designated to accept charged calls on the TAP 3 interface which do not have an equivalent Call Type in TAP1/TAP2/TAP2+.

A conversion takes place from TAP 3 to a lower TAP format generating mobile originating records in the lower format thereby allowing the home network to bill its subscribers while ensuring a 1-to-1 conversion process without any loss of data.