1. A method of operation of the Application Server (AS), which implements the additional service multimedia subsystem at the Base Protocol IP (IMS) for a user, wherein the method comprises: receiving a message from a user, and the message includes a rule, a certain user input, and the rule it is a condition that determines the SIP header field and determines the SIP header field value to match the value in the SIP message, to satisfy this condition, configure rules for the user; and determining whether this condition is satisfied SIP message, which refers to the user, and thus determining whether the action should be performed related to the rule for a message according to claim SIP.2.Sposob. 1, which is a supplementary service of the services: the service handoff (CDIV); barring of Communication (CB); Flexible service notifications; Flexible Distributed Communications; ilyubaya other based on usluga.3 rule. The method of claim. 1 or 2 in which the rule is configured with the condition, which requires that the SIP message has been the Contact field of the header, and requires that the Contact header field value included setting properties isfocus, when etomparametr properties isfocus is a parameter that is added Contact header field of SIP INVITE messages sent to the conference center users invited to join konferentssvyazi.4. A method for operating user equipment (UE) to configure additional Services Multimedia Subsystem to the Base Protocol IP (IMS) for a user, the method comprising: accepting inputs from the user input and defines the right
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