Patent ID: 7751842
Filing Date: 2010-07-06
Classification: H04W

Abstract:
1. A system for processing Push-To-Talk (PTT)-over-Cellular (PoC) ad-hoc group session information in a PoC system, in which a pre-established session and an auto-answer mode have been set between a receiving-side PoC client and a receiving-side PoC server, ad-hoc group session invitee information is provided to the receiving-side PoC client upon establishing a PoC ad-hoc group session, and a session setup according to the provided invitee information is performed, the system comprising: the PoC server for creating a connection message including the invitee information and an Auto-Answer Override (AAO) request parameter when a session invitation message including the ad-hoc group invitee information has been received from a transmitting-side network, transferring the created connection message to the receiving-side PoC client, and then performing a PoC session procedure according to a response received from the PoC client; and the PoC client for entering a manual response mode regardless of a currently-set response mode so as to transfer invitee information included in the connection message to a PoC user when the connection message has been received, and transferring to the PoC server a response message including information about acceptance or rejection of participation in the session, which is input from the PoC user.