Patent ID: 7711380
Filing Date: 2010-05-04
Classification: H04W

Abstract:
1. A PoC (Push-to-talk over Cellular) communication server apparatus for carrying out a session for a PoC group to realize group talk between terminal apparatuses, the PoC communication server apparatus comprising: non notification command obtaining means for obtaining a non notification command for hiding a user address of a terminal apparatus of a user included in said PoC group from another terminal apparatus of another user in the PoC group; and non notification setting means for transmitting to another terminal apparatus of another user a non notification setting command for hiding the user address of the terminal apparatus of the user related to said non notification command obtained by said non notification command obtaining means from the another terminal apparatus included in said PoC group; wherein said non notification setting command is transmitted at a predetermined timing including at least one of: prior to commencement of the session from a terminal apparatus the user address of which is desired to be hidden; from a terminal apparatus at a caller side at the time of the commencement of the session; and from a terminal apparatus during communication in the session; and wherein at least one of the non notification setting command for hiding the user address of the terminal apparatus of the user and another non notification setting command of hiding another user address of another terminal apparatus of another user is transmitted to a terminal apparatus included in the PoC group in an INVITE message that is a PoC session commencement request.