Patent ID: 7940702

Claim:
A method for exchanging information within a predefined group of telecommunication terminals with each of the predefined group of telecommunication terminals being utilized by a user, comprising: forming voice information into a first SIP invite message by a first one of the predefined group of telecommunication terminals wherein the predefined group of telecommunication terminals comprises more than two telecommunication terminals; communicating by first one of the predefined group of telecommunication terminals the first SIP invite message to other ones of the predefined group of telecommunication terminals; presenting the voice information in the first SIP invite message by each one of the other ones of the predefined group of telecommunication terminals upon reception of the first invite message; forming other voice information into a second SIP invite message by a second one of the predefined group of telecommunication terminals; communicating by a second one of the predefined group of telecommunication terminals the second SIP invite message to other ones of the predefined group of telecommunication terminals; presenting the other voice information in the second SIP invite message by each one of the other ones of the predefined group of telecommunication terminals upon reception of the second SIP invite message; transmitting a SIP re-invite message by the first one of the predefined group of telecommunication terminals to other ones of the predefined group of telecommunication terminals to establish a RTP stream in response to the user of the first one of the predefined group of telecommunication terminals requesting that the first one of the predefined group of telecommunication terminals establish a voice conference call with other ones of the predefined group of telecommunication terminals ; and establishing a RTP stream by ones of the predefined group of telecommunication terminals in response to transmission of the SIP re-invite message resulting in ones of the predefined group of telecommunication terminals becoming part of a voice conference call.