A method of handling calls in a mobile communication network, the method comprising: in a mobile switching centre of a home network, on receiving a request message, requesting call set-up to a called terminal; sending a message to a home location register of the home network to obtain an address of a mobile switching centre where the called terminal is located; characterised in that the method further comprises: on receiving a reply from the home location register, initiating a missed call notification service when it is determined that the called terminal is in a visited network, wherein a call forwarding number is not copied to a visitor location register, VLR, of the visited network when both the called terminal is in the visited network and the call forwarding number is equal to a voicemail system number; initiating a call set-up to the called terminal; and on being notified that the call has been released, with no call forwarding having taken place due to the call forwarding number not having been copied to a visitor location register, VLR, of the visited network, notifying the missed call notification service that the call has been released, such that the missed call notification service causes a message to be sent to the called terminal, notifying it of the missed call. in a mobile switching centre of a home network, on receiving a request message, requesting call set-up to a called terminal; sending a message to a home location register of the home network to obtain an address of a mobile switching centre where the called terminal is located; characterised in that the method further comprises: on receiving a reply from the home location register, initiating a missed call notification service when it is determined that the called terminal is in a visited network, wherein a call forwarding number is not copied to a visitor location register, VLR, of the visited network when both the called terminal is in the visited network and the call forwarding number is equal to a voicemail system number; initiating a call set-up to the called terminal; and on being notified that the call has been released, with no call forwarding having taken place due to the call forwarding number not having been copied to a visitor location register, VLR, of the visited network, notifying the missed call notification service that the call has been released, such that the missed call notification service causes a message to be sent to the called terminal, notifying it of the missed call. on receiving a reply from the home location register, initiating a missed call notification service when it is determined that the called terminal is in a visited network, wherein a call forwarding number is not copied to a visitor location register, VLR, of the visited network when both the called terminal is in the visited network and the call forwarding number is equal to a voicemail system number; initiating a call set-up to the called terminal; and on being notified that the call has been released, with no call forwarding having taken place due to the call forwarding number not having been copied to a visitor location register, VLR, of the visited network, notifying the missed call notification service that the call has been released, such that the missed call notification service causes a message to be sent to the called terminal, notifying it of the missed call.