AudioCodes Mediant 500L - Page 587

Version 7.2 587 Mediant 500L Gateway & E-SBC
User's Manual 27. Configuring Supplementary Services

Local, On-board Conferencing: The conference is established on the device without
the need for an external Conferencing server. The device supports up to four
simultaneous, on-board, three-way conference calls. This feature supports local
mixing and transcoding of the three-way conferencing legs on the device and multiple
codec conference calls. You can configure the maximum number of simultaneous, on-
board conferences, using the MaxInBoardConferenceCalls parameter.The mode is
configured by setting the 3WayConferenceMode parameter to 2.
Note:
• Each on-board, three-way conference call utilizes the resources of two DSP
channels, thereby reducing overall channel capacity by two. For example, for two
three-way conference calls, four DSP channels are utilized, thereby reducing
channel capacity from eight (four BRI ports * two) to four.
• 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 support for the BRI phones connected to the device
complies with ETS 300 185.
• Three-way conferencing is applicable only to FXS and BRI interfaces.
The following example demonstrates three-way conferencing using the device's local, on-
board conferencing feature. In the 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 and the number "1"
key.
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 the number "3" key.
 To configure three-way conferencing:
1. Open the Supplementary Services Settings page (Setup menu > Signaling & Media
tab > Gateway folder > DTMF & Supplementary > Supplementary Services
Settings).
2. From the 'Enable 3-Way Conference' drop-down list (Enable3WayConference), select
Enable.
3. From the '3-Way Conference Mode' drop-down list (3WayConferenceMode), select
the three-way conference mode (e.g, On Board).
4. For On Board mode:
• In the 'Max. 3-Way Conference' field (MaxInBoardConferenceCalls), enter the
maximum number of simultaneous, on-board three-way conference calls.
•
5. In the 'Conference ID' field (ConferenceID), enter the Conference Identification string.
6. The valid value is a string of up to 16 characters. The default is "conf".
7. Configure one of the following for how the device recognizes a three-way conference
request:
• In the 'Establish Conference Code' field (ConferenceCode), enter the DTMF digit
pattern (e.g., hook flash) that upon detection generates the conference call.