FIELD: services intended for wireless communication networks.
SUBSTANCE: invention relates to making calls using a second mobile phone number using a mobile device and using the first number without the need to use a second device using a mobile application in an IP-based multimedia subsystem (IMS). To provide the ability to manage calls received to second numbers through one mobile device, as well as make and manage outgoing calls from a mobile device in which a SIM card of another number is installed, using second numbers, the system contains a mobile device that is configured to run an application that supports the Voice over Internet Protocol (VoIP) telephony system, and the SIP (Session Establishment Protocol) and SRTP (Secure Real Time Protocol) signaling protocols for voice transmission, node registration for registering the user in the mobile application according to his first number, determined by his SIM card installed in his mobile device, as well as the coordination of the second and first numbers in mobile network subscriber systems, and the signal control node, which communicates with the IMS mobile network, provides control of signals using the second number, ensures registration of the mobile application in the IMS mobile network using the second number and its inclusion in the life cycle of the mobile application, receives calls transferred to the second number from the IMS mobile network and/or transmits calls made by the user through the mobile application with using its second number to the IMS mobile network. In this case, the mobile application creates a new account by processing the second number information included in the second number matching information that it receives from the registration node after completing the authentication and registration operation for the first number.
EFFECT: ability to manage calls received to second numbers through one mobile device, as well as make and manage outgoing calls from a mobile device in which a SIM card of another number is installed, using second numbers.
6 cl, 1 dwg
