AudioCodes MP-11x User Manual page 596

Parameter
Web/EMS: Conference ID
[ConferenceID]
Web: Use Different RTP port After
Hold
[UseDifferentRTPportAfterHold]
User's Manual
Defines the Conference Identification string.
The valid value is a string of up to 16 characters. The default is
"conf".
The device uses this identifier in the conference-initiating
INVITE that is sent to the media server when the
Enable3WayConference parameter is set to 1.
Enables the use of different RTP ports for the two calls
involved in a three-way conference call made by the FXS
endpoint in the initial outgoing INVITE requests.

[0] Disable = First and second calls use the same RTP port
in the initial outgoing INVITE request. If a three-way
conference is then made, the device sends a re-INVITE to
the held call to retrieve it and to change the RTP port to a
different port number.
For example: The first call is made on port 6000 and
placed on hold. The second call is made, also on port
6000. The device sends a re-INVITE to the held call to
retrieve it and changes the port to 6010.

[1] Enable = First and second calls use different RTP ports
in the initial outgoing INVITE request. If a three-way
conference is then made, the device sends a re-INVITE to
the held call to retrieve it, without changing the port of the
held call.
Notes:

When this feature is enabled and only one RTP port is
available, only one call can be made by the FXS endpoint,
as there is no free RTP port for a second call.

When this feature is enabled and you are using the Call
Forking feature, every forked call is sent with a different
RTP port. As the device can fork a call to up to 10
destinations, the device requires at least 10 free RTP ports.

This parameter is applicable only to FXS interfaces.
596
MP-11x & MP-124
Description
Document #: LTRT-65432