METHOD AND INSTALLATION FOR CONTROLLING A TELEPHONE CALL TRANSMITTER ON AN INTERNET NETWORK AND TELEPHONE TERMINAL THEREFOR

摘要

To check the identity of the emitter of a telephone call to an internet network, it is inserted a check code encrypted form in a field of a call set-up request, the code containing the parameters relating to the identity of a telecommunication terminal (12, 26) from which the telephone call is transmitted, it decodes by means of a management server calls (32) at the control code is compared at least one parameter out of the control code decrypted with the corresponding information stored in a database (34) housed in the server, and it establishes the call in accordance with the result of the comparison.