All TAP (Transferred Account Procedure) and RAP (Returned Account Procedure) files received at EDCH from clients destined to their roaming partner operators or vice versa, will be verified for all formats and releases. The content of TAP files will be validated as per GSM Association standards and transmitted to their destinations through the established transfer protocol. Both clients and roaming partners will be notified as and when the TAP files are processed. The status of files is also visible to clients at any time via the EDCH Online website. The following tasks will also be performed:

• Rejection of duplicate call records within and across TAP files.

 • Provision to reject files based on GSM industry standards.

• EDCH will follow up with the client and their roaming partner or respective clearinghouse for all pending, rejected, delayed and missing TAP Data. This will be done using GSMA standard reports and, in the case of clients, additional custom reports.

• Re-transmission and re-processing of files upon the client's request.

• An additional service is available whereby EDCH will correct TAP files on behalf of clients. This time-saving service assists clients in earlier detection of fraud and the avoidance of lost revenue due to TAP files exceeding their time limit for processing. In the case of RAP files, they too will be acknowledged and processed according to GSM Association standards. Using the RAP procedure helps to prevent the delay of erroneous TAP files, since rejected records are removed from TAP files and inserted into RAP files for independent correction.