User's Manual 1058 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Parameter Description
Enable Hold
configure voip > gateway
dtmf-supp-service supp-
service-settings > hold
[EnableHold]
Global parameter that enables the Call Hold feature (analog interfaces)
and interworking of the Hold/Retrieve supplementary service from ISDN
to SIP (digital interfaces). You can also configure this functionality per
specific calls, using IP Profiles (IpProfile_EnableHold). For a detailed
description of the parameter and for configuring this functionality in the IP
Profiles table, see ''Configuring IP Profiles'' on page 393.
Note: If this functionality is configured for a specific IP Profile, the settings
of this global parameter is ignored for calls associated with the IP Profile.
Hold Format
configure voip > gateway
dtmf-supp-service supp-
service-settings > hold-
format
[HoldFormat]
Defines the format of the SDP in the sent re-INVITE hold request.
 [0] 0.0.0.0 = (Default) The SDP "c=" field contains the IP address
"0.0.0.0" and the "a=inactive" attribute.
 [1] Send Only = The SDP "c=" field contains the device's IP address
and the "a=sendonly" attribute.
 [2] x.y.z.t = The SDP "c=" field contains the device's IP address and
the "a=inactive" attribute.
Note:
 The device does not send any RTP packets when it is in hold state.
 Digital interfaces: The parameter is applicable only to QSIG and Euro
ISDN protocols.
Held Timeout
configure voip > gateway
dtmf-supp-service supp-
service-settings > 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] = (Default) The call is placed on hold indefinitely until the initiator
of the on hold retrieves the call again.

= Time to wait (in seconds) after which the call is released.
Call Hold Reminder Ring
Timeout
configure voip > gateway
dtmf-supp-service supp-
service-settings > call-
hold-remnd-rng
[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 the parameter. If the user off-hooks the phone, the
call becomes active.
The valid range is 0 to 600. The default is 30.
Note:
 The parameter is applicable only to FXS interfaces.
 This Reminder Ring feature can be disabled using the
DisableReminderRing parameter.
configure voip > gateway
dtmf-supp-service supp-
service-settings > dis-
reminder-ring
[DisableReminderRing]
Disables the reminder ring, which notifies the FXS user of a call on hold
or a waiting call when the phone is returned to on-hook position.
 [0] = (Default) The reminder ring feature is active. In other words, if a
call is on hold or there is a call waiting and the phone is changed from
offhook to onhook, the phone rings (for a duration defined by the
CHRRTimeout parameter) to "remind" you of the call hold or call
waiting.
 [1] = Disables the reminder ring. If a call is on hold or there is a call
waiting and the phone is changed from offhook to onhook, the call is
released (and the device sends a SIP BYE to the IP).
Note:
 The parameter is applicable only to FXS interfaces.
 The parameter is typically used for MLPP, allowing preemption to clear
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