| 摘要 |
A mobile station 10 includes: an SMS information acquisition unit 21 configured to acquire an SMS (registration request) through line switching NW 300, the SMS including group call identification information that identifies a group call; a memory 19 configured to store the group call identification information included in the SMS (registration request) as a received call history; and a halfway participation processor 25b configured to accept calling operation for the group call associated with the group call identification information stored as the received call history, to acquire from the storage unit the group call identification information associated with the group call for which the calling operation has been accepted, and to generate an INVITE (halfway participation) including the acquired group call identification information.
|
