A CALL TRACKING SYSTEM AND A METHOD PERFORMED BY A CALL TRACKING SYSTEM

摘要

A call-tracking system and a method performed by a call-tracking system is provided where information contained in a trackable message received from a service provider and associated with a first telephone number of a first user equipment addressed to a second user equipment associated with a second telephone number is stored in a database. The message is also forwarded to the second user equipment, and if a trigger message comprising the second telephone number and the first telephone number is received by the call-tracking system, it is determined whether the two telephone numbers of the trigger message correspond to the previously stored telephone numbers stored associated with each other in the database and, whether the call has been made within a predetermined time interval. If the two mentioned conditions are fulfilled, the call is considered to be associated with the advertisement provided to the second user equipment in the message.