Method for optimal utilization of the capacity of a mobile network serving mobile phones located in a selected geographical area, and for handling of network traffic in a period with heavy network load exerted by network traffic to or from, or both to and from said area for avoiding overloading of said mobile network, comprising the following steps: a) establishing an overview of maximum network capacity of said mobile network serving said selected geographical area as well as adjacent areas; b) establishing an overview of the identity of mobile phones located within said selected geographical area as well as in adjacent areas served by said mobile network for determining maximum traffic load that may be exerted by mobile phones on the mobile network based on a scenario where each connected phone exerts maximum load on the network; c) performing monitoring of current traffic load exerted by different types of mobile services delivered via said mobile network; d) determining type of barring, of one or more of said different types of mobile services to be set or removed for network traffic to or from, or both to and from, mobile phones identified in step b), based on said maximum network capacity, said determined maximum traffic load, and said current monitored traffic load, where barring is set if current monitored traffic load is determined to be above the maximum network capacity, and where type of service to be barred is based on the service contributing the most to the traffic load, and where a set barring is removed if current monitored traffic load is determined to be below the maximum capacity of the network; e) setting type of barring or removing set type of barring, determined in step d), of said mobile phones identified in step b) and which are served by said mobile network for utilizing maximum network capacity without overloading the network during a period with heavy network load, and preferably without shutting down all network services for a particular mobile phone; f) repeating steps b) to e). a) establishing an overview of maximum network capacity of said mobile network serving said selected geographical area as well as adjacent areas; b) establishing an overview of the identity of mobile phones located within said selected geographical area as well as in adjacent areas served by said mobile network for determining maximum traffic load that may be exerted by mobile phones on the mobile network based on a scenario where each connected phone exerts maximum load on the network; c) performing monitoring of current traffic load exerted by different types of mobile services delivered via said mobile network; d) determining type of barring, of one or more of said different types of mobile services to be set or removed for network traffic to or from, or both to and from, mobile phones identified in step b), based on said maximum network capacity, said determined maximum traffic load, and said current monitored traffic load, where barring is set if current monitored traffic load is determined to be above the maximum network capacity, and where type of service to be barred is based on the service contributing the most to the traffic load, and where a set barring is removed if current monitored traffic load is determined to be below the maximum capacity of the network; e) setting type of barring or removing set type of barring, determined in step d), of said mobile phones identified in step b) and which are served by said mobile network for utilizing maximum network capacity without overloading the network during a period with heavy network load, and preferably without shutting down all network services for a particular mobile phone; f) repeating steps b) to e).