Abstract: A method for optimized exchange of geographical location information between a core network element in a public telecommunication network, in particular, a mobile radio network, and a location information server unit includes, before a core network element is accessed for the exchange of location information (in particular, for reading out) a server unit implementing a series of access attempts with messages of different message types, until one access attempt has resulted in a successful exchange of information. When an access attempt has resulted in a successful exchange of information, a corresponding entry is added to stored decision information on the part of the server unit; during subsequent access to the core network element, implementation is based on the entry using the message type according to the entry.