US 2007/0165810 A1 · Invite Conference-Unaware Participant with Active Dialog to an Ad-Hoc Conference at the Application Server

Abstract

A system and method for initiating a conference call is provided. The method consists of a first participant initiating a first telephony session with a second participant. The first participant then places the second participant on hold, initiates a second telephony session with a third participant, and initiates the conference call. A SIP REFER message related to the second and third participants is sent to an application server. A SIP INVITE message is sent to the second and third participants. The first telephony session is replaced with a session between the second participant and a conference bridge. The second telephony session is replaced with a session between the third participant and the conference bridge.

Claims19

Dependent claims

A method for initiating a conference call comprising:

a first participant initiating a first telephony session with a second participant;
the first participant placing the second participant on hold;
the first participant initiating a second telephony session with a third participant;
the first participant initiating the conference call;
sending a SIP (session initiation protocol) REFER message related to the second and third participants to an application server;
sending a SIP INVITE message to the second and third participants;
replacing the first telephony session with a session between the second participant and a conference bridge;
and
replacing the second telephony session with a session between the third participant and the conference bridge.

6 more elements

Dependencies are inferred from the claim text.

Invite Conference-Unaware Participant with Active Dialog to an Ad-Hoc Conference at the Application Server

Life of this patent

Invite Conference-Unaware Participant with Active Dialog to an Ad-Hoc Conference at the Application Server

Life of this patent

Abstract

Claims19