FIELD: physics; communications.
SUBSTANCE: invention relates to communication systems. A method is proposed for sending information from a session initiating protocol intermediate node to a first session initiating protocol terminal. The method involves, upon receiving a session initiation request at the session initiation protocol intermediate node, establishment of a first session initiation protocol dialogue between the session initiation protocol intermediate node and the first session initiation protocol terminal, sending information through the said first dialogue, forwarding the said request from the session initiation protocol intermediate node to the second terminal (session initiation protocol terminal destination) before, during and after establishing the said first dialogue, and establishment of the second session initiation protocol dialogue between the first and second session initiation protocol terminals.
EFFECT: increased dialogue efficiency when establishing a communication session.
9 cl, 4 dwg
