Method, Mobile Switching Centre, MSC, and a Computer Program Product for Detecting Interconnect Bypass

A method for detecting interconnect bypass by a subscription identity in a telecommunication network, said telecommunication network comprising at least a Mobile Switching Center (MSC) serving a plurality of subscription identities, said method comprising:

• setting, by said MSC, a bypass threshold value, said bypass threshold value being an integer number;
• monitoring, by said MSC, for originating calls from each of at least one of said plurality of subscription identities per a pre-defined period of time;
• and
• detecting, by said MSC, when said number of originating calls for one of said plurality of subscription identities exceeds said bypass threshold value, and issuing an alert message, thereby indicating an interconnect bypass by said one of said plurality of subscription identities.

A Mobile Switching Center (MSC) arranged to serve a plurality of subscription identities in a telecommunication network, and for detecting interconnect bypass by any of said plurality of subscription identities in said telecommunication network, said MSC comprising:

• communication circuitry configured to communicatively couple said MSC to one or more other nodes in said telecommunication network;
• and
• processing circuitry operatively associated with said communication circuitry and configured to:
• set a bypass threshold value, said bypass threshold value being an integer number;
• monitor for originating calls from each of at least one of said plurality of subscription identities per a pre-defined period of time;
• and
• detect when said number of originating calls for one of said plurality of subscription identities exceeds said bypass threshold value, thereby indicating an interconnect bypass by said one of said plurality of subscription identities.

A non-transitory computer readable medium storing computer program code that, when executed by a Mobile Switching Center (MSC) arranged to serve a plurality of subscription identities in a telecommunication network, cause said MSC to:

• set a bypass threshold value, said bypass threshold value being an integer number;
• monitor for originating calls from each of at least one of said plurality of subscription identities per a pre-defined period of time;
• and
• detect when said number of originating calls for one of said plurality of subscription identities exceeds said bypass threshold value, thereby indicating an interconnect bypass by said one of said plurality of subscription identities.