A method for generating information relating to a subscriber B with respect to a call connection attempt from a subscriber A to the subscriber B by a server, characterized in that the method comprises: receiving event data representing the call connection attempt related events, the event data is received from an intelligent network of a mobile communication network and stored in a memory accessible by the server, determining if the event data comprises an event representing a busy state, in response to a determination that the event data comprises the event representing the busy state determining if the previous event to the event representing the busy state represents a call ringing state, in response to a determination that the previous event to the event representing the busy state represents the call ringing state: determining a duration of the ringing state, comparing the duration to a timeout value representing a value of time defining a period of time of rejecting the call connection attempt by a communication network implementing the call connection attempt, and in response to a detection that the duration of the ringing state exceeds or corresponds to the timeout value, generating an indication that the call connection attempt is rejected by the communication network, and in response to a detection that the duration of the ringing state is below the timeout value, generating an indication that the call connection attempt is rejected by the subscriber B, in response to a determination that the previous event to the event representing the busy state does not represent the call ringing state generating an indication that the call connection attempt did not reach the subscriber B, not generating a notification to the subscriber B in response to the generation of an indication that the call connection attempt is rejected by the subscriber B, generating a notification to the subscriber B in response to one of: the generation of the indication that the call connection attempt has not reached the subscriber B; the generation of the indication that the call connection attempt is rejected by the communication network, and sending the notification to the subscriber B. receiving event data representing the call connection attempt related events, the event data is received from an intelligent network of a mobile communication network and stored in a memory accessible by the server, determining if the event data comprises an event representing a busy state, in response to a determination that the event data comprises the event representing the busy state determining if the previous event to the event representing the busy state represents a call ringing state, in response to a determination that the previous event to the event representing the busy state represents the call ringing state: determining a duration of the ringing state, comparing the duration to a timeout value representing a value of time defining a period of time of rejecting the call connection attempt by a communication network implementing the call connection attempt, and in response to a detection that the duration of the ringing state exceeds or corresponds to the timeout value, generating an indication that the call connection attempt is rejected by the communication network, and in response to a detection that the duration of the ringing state is below the timeout value, generating an indication that the call connection attempt is rejected by the subscriber B, determining a duration of the ringing state, comparing the duration to a timeout value representing a value of time defining a period of time of rejecting the call connection attempt by a communication network implementing the call connection attempt, and in response to a detection that the duration of the ringing state exceeds or corresponds to the timeout value, generating an indication that the call connection attempt is rejected by the communication network, and in response to a detection that the duration of the ringing state is below the timeout value, generating an indication that the call connection attempt is rejected by the subscriber B, in response to a determination that the previous event to the event representing the busy state does not represent the call ringing state generating an indication that the call connection attempt did not reach the subscriber B, not generating a notification to the subscriber B in response to the generation of an indication that the call connection attempt is rejected by the subscriber B, generating a notification to the subscriber B in response to one of: the generation of the indication that the call connection attempt has not reached the subscriber B; the generation of the indication that the call connection attempt is rejected by the communication network, and sending the notification to the subscriber B.