COMMUNICATION PROGRAM AND COMMUNICATION TERMINAL

The present invention aims at extending a talkable time allocated by a server at the user's will of the equipment. In a PoC service that implements a half duplex talk session using a packet communication among a plurality of equipments via a PoC server, the PoC server receives a talking time extend request from a user equipment 21 to which a floor is granted (step S801). Then, the PoC server grants the talking time extend request by determining that no floor take request is made by equipments except the user equipment 21 to which the floor is granted. Then, the PoC server transmits a talking time extend notification to the equipment to which the talking time extend request is granted (step S802).