SIP User's Manual 444 Document #: LTRT-65415
MediaPack Series
10.12.5.4 Message Waiting Indication Parameters
The message waiting indication (MWI) parameters are described in the table below.
Table 10-43: MWI Parameters
Parameter Description
Web: Enable MWI
EMS: MWI Enable
[EnableMWI]
Enables Message Waiting Indication (MWI).
 [0] Disable = Disabled (default).
 [1] Enable = MWI service is enabled.
Notes:
 This parameter is applicable only to FXS interfaces.
 The device supports only the receipt of SIP MWI NOTIFY
messages (the device doesn't generate these messages).
 For detailed information on MWI, see ''Message Waiting
Indication'' on page 262.
Web/EMS: MWI Analog Lamp
[MWIAnalogLamp]
Enables the visual display of MWI.
 [0] Disable = Disable (default).
 [1] Enable = Enables visual MWI by supplying line voltage
of approximately 100 VDC to activate the phone's lamp.
Notes:
 This parameter is applicable only for FXS interfaces.
 This parameter can also be configured per Tel Profile (using
the TelProfile parameter).
Web/EMS: MWI Display
[MWIDisplay]
Determines whether MWI information is sent to the phone
display.
 [0] Disable = MWI information isn't sent to display (default).
 [1] Enable = The device generates an MWI message
(determined by the parameter CallerIDType), which is
displayed on the MWI display.
Note:
 This parameter is applicable only to FXS interfaces.
 This parameter can also be configured per Tel Profile (using
the TelProfile parameter).
Web: Subscribe to MWI
EMS: Enable MWI Subscription
[EnableMWISubscription]
Enables subscription to an MWI server.
 [0] No = Disables MWI subscription (default).
 [1] Yes = Enables subscription to an MWI server (defined by
the parameter MWIServerIP address).
Note: To configure whether the device subscribes per endpoint
or per the entire device, use the parameter SubscriptionMode.
Web: MWI Server IP Address
EMS: MWI Server IP
[MWIServerIP]
MWI server's IP address. If provided, the device subscribes to
this IP address. The MWI server address can be configured as
a numerical IP address or as a domain name. If not configured,
the Proxy IP address is used instead.