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DX-120 Programming Manual BASIC CALL HANDLING PROGRAMMING TASKS
Programming Conference Calls
• The system can simultaneously accommodate eight, four-member (party) conferences. Conference
combinations may consist of three CO lines maximum, and any number of extensions, to a maximum of four
parties (members).
• A supervised conference is a conference in which at least one member is an extension of the DX-120 system.
The DX-120 extension that establishes a conference is the conference controller, and may add and/or delete
members of the conference at any time. The conference controller also has the privilege of establishing an
unsupervised conference.
• An unsupervised conference is a conference in which only CO lines are members. All members are therefore
outside of the premises and connected together using the DX-120 conference resource. An unsupervised
conference may be re-joined by the initiating DX-120 extension, however, that extension maintains control of the
conference even though it is unsupervised.
• One extension directory number is the controller of the conference and constitutes one conference member.
Extension users must first establish a three-member conference before they can establish a four-member
conference.
• Conditions for CO Line Conferences
- The extension that establishes a conference is called the controlling party.
- Only the conference controller can add a new conference connection (party).
- Only the controlling party is allowed to invite or forcibly release any attending internal or external party, or to
setup a “private talk” with any one attending party.
- When adding new parties to a conference and while speaking privately to a particular conference member
other members of the conference will be connected to Music On Hold.
- Each of the calls involved in a holding conference will be placed on Exclusive Hold.
- When the controlling party exits a conference, the most recently invited internal party will be designated as
the new controlling party.
- When a conference is established, each party will hear a burst of conference tone when the conference tone
is enabled.
- You can program the unsupervised conference feature code Feature 7 7 on any available programmable
feature button.
- Only the controller of an unsupervised conference may rejoin an unsupervised conference.
- Conference can only be established at a digital speakerphone.
WHEN PROGRAMMING CONFERENCE CALLS
- Program the maximum CO lines you want to allow in a conference (none, 2 or 3).
- Program the time allowed for unsupervised conferences (CO Line-to-CO Line).
- Turn the conference tone on (Yes) or off (No).
• Other features that May Affect Conference Calling
- CO Line Loop Supervision
- CO Line – Call Abandon
PROGRAMMING THE CONFERENCE CALL SETTINGS INCLUDES 3 BASIC TASKS:
• Select the maximum number of lines - see page 189
• Set the conference tone - see page 241
• Set the unsupervised talk time - see page 294
Programming Confernce Calls (continued on next page)
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