A telecommunication arrangement for switching from a fallback subscription to an operational subscription

A telecommunication arrangement (10) for switching from a fallback subscription (14) to an operational subscription (11-13), said telecommunication arrangement (10) comprising a first agent (16), PSA, having a list of operational profiles available for said telecommunication arrangement (10), each operational profile corresponding to a subscription from a MNO, Mobile Network Operator, and which of said operational profiles can be used when a telecommunication terminal comprising said telecommunication arrangement (10) enters under the coverage of an operational network, said telecommunication arrangement (10) also comprising a second agent (15), PSCA, able to configure said fallback subscription (14) in order for said first agent (16) to switch from said fallback subscription (14) to the operational network under which said telecommunication terminal enters under coverage, said PSA (16) comprising an OPSI database (17), Operational Profile Selection Information database, storing a list of HPLMN codes corresponding to said operational profiles (11-13), said OPSI database (17) being accessed by said PSCA (15) via a Profile Selection Agent interface PSAi (18), an API exposed by said PSA (16), said PSCA (15) interrogating said OPSI database (17) through said PSAi (18) which profile has to be activated in function of the PLMN code of the operational network under which said telecommunication terminal enters under coverage and in function of a priority of said profiles, said PSCA (15) storing this information in its profile file in its local memory.