System for management of the identification of the operator of at least one telephone number of a caller of the user of a terminal, called the recipient, connected to at least one communication and/or signalling network using, for example, a protocol of SS7 type, characterised in that: • the system comprises at least one filtering system of at least one information signal transmitted on the establishment of a telephonic communication, this filtering system being embedded in the recipient's terminal or implemented in the network and comprising: ∘ at least one verification device analysing the transmitted signal and including: - a first recognition means (2a1) of at least one identification element of the operator of the telephone number of the caller, in the transmitted signal, - a means for verification of the authorisation of the reception and/or the use of said identification element of the operator of the telephone number of the caller by the recipient's terminal, and - at least one transfer means of the verified signal, from the verification device to an information segregation device or to an application of the recipient's terminal, ∘ a segregation device of said identification element of the operator of the telephone number of the caller in the transmitted signal, this segregation device comprising - a second recognition means of said identification element of the operator of the telephone number of the caller in the verified signal received from the verification device, and - an elimination means, in the signal, of the identification element of the recognised operator of the caller, • the recipient's terminal comprises at least one display device and at least one software application intended at least for the recovery and/or the display of an identifier of the operator from said identification element of the operator of the telephone number of the caller and as a function of the verified authorisation by the verification device and/or of the elimination, performed by the segregation device. • the system comprises at least one filtering system of at least one information signal transmitted on the establishment of a telephonic communication, this filtering system being embedded in the recipient's terminal or implemented in the network and comprising: ∘ at least one verification device analysing the transmitted signal and including: - a first recognition means (2a1) of at least one identification element of the operator of the telephone number of the caller, in the transmitted signal, - a means for verification of the authorisation of the reception and/or the use of said identification element of the operator of the telephone number of the caller by the recipient's terminal, and - at least one transfer means of the verified signal, from the verification device to an information segregation device or to an application of the recipient's terminal, ∘ a segregation device of said identification element of the operator of the telephone number of the caller in the transmitted signal, this segregation device comprising - a second recognition means of said identification element of the operator of the telephone number of the caller in the verified signal received from the verification device, and - an elimination means, in the signal, of the identification element of the recognised operator of the caller, ∘ at least one verification device analysing the transmitted signal and including: - a first recognition means (2a1) of at least one identification element of the operator of the telephone number of the caller, in the transmitted signal, - a means for verification of the authorisation of the reception and/or the use of said identification element of the operator of the telephone number of the caller by the recipient's terminal, and - at least one transfer means of the verified signal, from the verification device to an information segregation device or to an application of the recipient's terminal, - a first recognition means (2a1) of at least one identification element of the operator of the telephone number of the caller, in the transmitted signal, - a means for verification of the authorisation of the reception and/or the use of said identification element of the operator of the telephone number of the caller by the recipient's terminal, and - at least one transfer means of the verified signal, from the verification device to an information segregation device or to an application of the recipient's terminal, ∘ a segregation device of said identification element of the operator of the telephone number of the caller in the transmitted signal, this segregation device comprising - a second recognition means of said identification element of the operator of the telephone number of the caller in the verified signal received from the verification device, and - an elimination means, in the signal, of the identification element of the recognised operator of the caller, - a second recognition means of said identification element of the operator of the telephone number of the caller in the verified signal received from the verification device, and - an elimination means, in the signal, of the identification element of the recognised operator of the caller, • the recipient's terminal comprises at least one display device and at least one software application intended at least for the recovery and/or the display of an identifier of the operator from said identification element of the operator of the telephone number of the caller and as a function of the verified authorisation by the verification device and/or of the elimination, performed by the segregation device.