Patent ID: 9681274
Date: 2017-06-13
CPC Classifications: H04L,H04M,H04W

Claim:
1. A communication device with a function to participate in a group call with a plurality of other communication devices in a half-duplex communication system, the communication device comprising at least one processor configured to: automatically accept a first incoming group call even when a user of the communication device does not perform any operation for receiving the first group call; receive an instruction from another communication, that initiated the first group call, to record sound received during the first group call; in response to the instruction, automatically begin recording sound received during the first group call in a memory of the communication device; when an operation indicating that the user is participating in the first group call is received during the first group call, notify the other communication device that initiated the first group call that the user is participating in the first group call; and, when the first group call is terminated while the sound is still being recorded, automatically stop the recording.