Being the method of operating push to tokusabisu which minds portable radio communication network, the user of the portable radio terminal automatic response mode or manual response mode offers selective possible method concerning the invitation message of the session which arrives at least vis-a-vis the other user of some person. The step where this method when invitation message of the aforementioned session is received in push to tokusaba which offers service to step and the aforementioned called party which include the request of manual response mode in invitation message of push to tokusetsushiyon which is transmitted from calling side to called party, in spite, includes the request of the aforementioned manual response mode in step and the aforementioned called party which transfer the aforementioned invitation message which to the aforementioned called party, receives the aforementioned invitation message even in what automatic response mode set for the aforementioned called party forms arrival sound in the terminal of the aforementioned called party and,It has.
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