Local, on-board conferencing: The conference is established on the device without
the need for an external Conference server. This feature includes local mixing and
transcoding of the 3-Way Call legs on the device, and even allowing multi-codec
conference calls. The number of simultaneous, on-board conferences can be limited
using the parameter MaxInBoardConferenceCalls. The device utilizes resources from
idle ports to establish the conference call. You can designate ports that can’t be used
as a resource for conference calls initiated by other ports, using the parameter
3WayConfNoneAllocateablePorts. Ports that are not configured with this parameter
(and that are idle) are used by the device as a resource for establishing these type of
conference calls. The device supports up to two simultaneous, on-board, three-way
conference calls. For this mode, the 3WayConferenceMode parameter is set to 2.
Notes:
• Instead of using the flash-hook button to establish a three-way
conference call, you can dial a user-defined hook-flash code (e.g., "*1"),
configured by the HookFlashCode parameter.
• Three-way conferencing is applicable only to FXS interfaces.
The following example demonstrates three-way conferencing using the device's local, on-
board conferencing feature. In this example, telephone "A" connected to the device
establishes a three-way conference call with two remote IP phones, "B" and "C":
1. A establishes a regular call with B.
2. A places B on hold, by pressing the telephone's flash-hook button.
3. A hears a dial tone and then makes a call to C.
4. C answers the call.
5. A establishes a three-way conference call with B and C, by pressing the flash-hook
button and digit 3.
To configure this local, on-board three-way conferencing:
1. Open the Supplementary Services page.
2. Set 'Enable 3-Way Conference' to Enable (Enable3WayConference = 1).
3. Set 'Three Way Conference Mode' to On Board (3WayConferenceMode = 2).
4. Set 'Flash Keys Sequence Style' to Sequence 1 or Sequence 2
(FlashKeysSequenceStyle = 1 or 2).
Note: For local, on-board three-way conferencing on MP-112, in add
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