Duplex Conference

Open Duplex Conference

An open duplex conference in principle an ordinary conversation with more than two participants. An open duplex conference can have a maximum of 4 participants, all using either handset or headset. 20 open duplex conferences can be configured. One station can leave the conference by hanging up. A conference participant can drop out of the conference temporarily to add another station by dialing 56 + directory number. It is possible to control conference set-up remotely. One station can force up to 4 other stations into a conference. Stations can also be forced out of a conference. A telephone call can be included in the conference.

A master station for the conference can be defined. This has the effect that when the master leaves the conference, the whole conference is terminated.

Open Duplex Conference Priority

low, medium and high	The conference is treated like an ordinaru conversation.
alarm	cancels any other conference for the station cancels any ongoing conversation for the station. If the station is in an alarm conversation (call from a station with alarm priority) the conference does not cancel the conversation. The conference seizes any necessary AGA conference resources in an AlphaNet installation.

Additional Information

• Default directory numbers: 8300 - 8320
• There must be an AGA board in the exchange. Each participant uses one AGA channel. One AGA board thus supports 4 conferences with 4 stations in each or 8 conferences with 2 stations in each.
• Both stations connected to ASLT-board and ATLB-board can be participants
• In a multi-module exchange: All participants must be connected to the Master Module (physical numbers 1 - 138).
• The remote set-up of duplex conference is a toggle feature. You can program a single-touch key with the remote set-up number + the station number + conference number. On the first press of the key, the station is included in an ongoing conference, on second press the station is removed from the conference. It is possible to do this from a station which is already a member of the conference.

Software

• AMC 07.20: open duplex conference implemented.
• AMC 08.00: remote set-up as toggle feature.
• AMC 10.00: Stations can join the duplex conference in loudspeaking "handsfree" mode. Stations connected to slave modules can also join the duplex conference. A two-party conversation can be converted to a duplex conference ad-hoc.