AudioCodes Mediant 600 - Call Hold Parameters

Version 6.4 667 March 2012
SIP User's Manual A. Configuration Parameters Reference
A.12.5.5 Call Hold Parameters
The call hold parameters are described in the table below.
Table A-45: Call Hold Parameters
Parameter Description
Web/EMS: Enable Hold
[EnableHold]
For digital interfaces: Enables interworking of the Hold/Retrieve
supplementary service from PRI to SIP.
 [0] Disable
 [1] Enable (default)
For analog interfaces: If the Hold service is enabled, a user can place the
call on hold (or remove from hold) using the Hook Flash button. On
receiving a Hold request, the remote party is placed on hold and hears
the hold tone.
Notes:
 For digital interfaces: To support interworking of the Hold/Retrieve
supplementary service from SIP to ISDN (for QSIG and Euro ISDN),
set the parameter EnableHold2ISDN to 1.
 For analog interfaces: To use this service, the devices at both ends
must support this option.
 This parameter can also be configured per IP Profile, using the
IPProfile parameter (see 'Configuring IP Profiles' on page 219).
Web/EMS: Hold Format
[HoldFormat]
Determines the format of the SDP in the Re-INVITE hold request.
 [0] 0.0.0.0 = The SDP "c=" field contains the IP address "0.0.0.0" and
the "a=inactive" attribute (default).
 [1] Send Only = The SDP "c=" field contains the device's IP address
and the "a=sendonly" attribute.
Notes:
 The device does not send any RTP packets when it is in hold state (for
both hold formats).
 For digital interfaces: This parameter is applicable only to QSIG and
Euro ISDN protocols.
Web/EMS:Held Timeout
[HeldTimeout]
Defines the time interval that the device allows for a call to remain on
hold. If a Resume (un-hold Re-INVITE) message is received before the
timer expires, the call is renewed. If this timer expires, the call is released
(terminated).
 [-1] = The call is placed on hold indefinitely until the initiator of the on
hold retrieves the call again (default).
 [0 - 2400] = Time to wait (in seconds) after which the call is released.
Web: Call Hold Reminder
Ring Timeout
EMS: CHRR Timeout
[CHRRTimeout]
Defines the duration (in seconds) that the Call Hold Reminder Ring is
played. If a user hangs up while a call is still on hold or there is a call
waiting, then the FXS interface immediately rings the extension for the
duration specified by this parameter. If the user off-hooks the phone, the
call becomes active.
The valid range is 0 to 600. The default value is 30.
Notes:
 This parameter is applicable only to FXS interfaces.
 This Reminder Ring feature can be disabled using the
DisableReminderRing parameter.
[DisableReminderRing]
Disables the reminder ring, which notifies the FXS user of a call on hold