Message Waiting Indication Parameters

'Enable MWI'

configure voip > gateway dtmf-supp-service supp-service-settings > enable-mwi

[EnableMWI]

Enables Message Waiting Indication (MWI).

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[0] Disable (default)

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[1] Enable

Note:

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The parameter is applicable only to FXS interfaces.

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The device supports only the receipt of SIP MWI NOTIFY messages (the device doesn't generate these messages).

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For more information on MWI, see Message Waiting Indication.

'MWI Analog Lamp'

configure voip > gateway dtmf-supp-service supp-service-settings > mwi-analog-lamp

[MWIAnalogLamp]

Global parameter enabling the visual display of MWI.

You can also configure the feature per specific calls, using Tel Profiles ('MWI Analog Lamp' parameter). For a detailed description of the parameter and for configuring the feature in the Tel Profiles table, see Configuring Tel Profiles.

Note:

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If the feature is configured for a specific Tel Profile, the settings of the global parameter is ignored for calls associated with the Tel Profile.

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The parameter is applicable only to FXS interfaces.

'MWI Display'

configure voip > gateway dtmf-supp-service supp-service-settings > enable-mwi

[MWIDisplay]

Global parameter enabling the sending of MWI information to the phone display.

You can also configure the feature per specific calls, using Tel Profiles ('MWI Display' parameter). For a detailed description of the parameter and for configuring the feature in the Tel Profiles table, see Configuring Tel Profiles.

Note:

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If the feature is configured for a specific Tel Profile, the settings of the global parameter is ignored for calls associated with the Tel Profile.

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The parameter is applicable only to FXS interfaces.

'Subscribe to MWI'

configure voip > gateway dtmf-supp-service supp-service-settings > subscribe-to-mwi

[EnableMWISubscription]

Enables subscription to an MWI server.

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[0] No (default)

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[1] Yes

Note:

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To configure the MWI server address, use the MWIServerIP parameter.

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To configure whether the device subscribes per endpoint or per the entire device, use the parameter SubscriptionMode.

'MWI Server IP Address'

configure voip > gateway dtmf-supp-service supp-service-settings > mwi-srvr-ip-addr

[MWIServerIP]

Defines the 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.

'MWI Server Transport Type'

configure voip > gateway dtmf-supp-service supp-service-settings > mwi-srvr-transp-type

[MWIServerTransportType]

Determines the transport layer used for outgoing SIP dialogs initiated by the device to the MWI server.

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[-1] Not Configured (default)

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[0] UDP

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[1] TCP

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[2] TLS

Note: When set to ‘Not Configured’, the value of the parameter SIPTransportType is used.

'MWI Subscribe Expiration Time'

configure voip > gateway dtmf-supp-service supp-service-settings > mwi-subs-expr-time

[MWIExpirationTime]

Defines the MWI subscription expiration time in seconds.

The default is 7200 seconds. The range is 10 to 2,000,000.

'MWI Subscribe Retry Time'

configure voip > gateway dtmf-supp-service supp-service-settings > mwi-subs-rtry-time

[SubscribeRetryTime]

Defines the subscription retry time (in seconds) after last subscription failure.

The default is 120 seconds. The range is 10 to 2,000,000.

'Subscription Mode'

configure voip > sip-definition proxy-and-registration > subscription-mode

[SubscriptionMode]

Determines the method the device uses to subscribe to an MWI server.

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[0] Per Endpoint = (Default) Each endpoint subscribes separately - typically used for FXS interfaces.

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[1] Per Gateway = Single subscription for the entire device - typically used for FXO interfaces.

configure voip > interface fxs-fxo > etsi-vmwi-type-one-standard

[ETSIVMWITypeOneStandard]

Determines the ETSI Visual Message Waiting Indication (VMWI) Type 1 sub-standard.

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[0] = (Default) ETSI VMWI between rings

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[1] = ETSI VMWI before ring DT_AS

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[2] = ETSI VMWI before ring RP_AS

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[3] = ETSI VMWI before ring LR_DT_AS

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[4] = ETSI VMWI not ring related DT_AS

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[5] = ETSI VMWI not ring related RP_AS

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[6] = ETSI VMWI not ring related LR_DT_AS

Note: For the parameter to take effect, a device restart is required.

configure voip > interface fxs-fxo > bellcore-vmwi-type-one-standard

[BellcoreVMWITypeOneStandard]

Determines the Bellcore VMWI sub-standard.

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[0] = (Default) Between rings.

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[1] = Not ring related.

Note: For the parameter to take effect, a device restart is required.

[EnableLowVoltageMwiGeneration]

Defines the Message Waiting Indication (MWI) voltage level mode (low or high) that the FXS port generates to light a lamp on the FXS phone to indicate a message in waiting.

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[0] = (Default) The FXS port generates a high DC voltage (90 VDC) for the MWI signal:

✔

Blinking MWI Light Mode: The FXS generates a high DC voltage to light up the MWI indicator and a normal on-hook voltage to turn it off. To configure the on-off light duration (blinking duty cycle), use the parameters NeonMwiOnDurationTime and NeonMwiOffDurationTime. (The parameters LedMwiOnDurationTime and LedMwiOffDurationTime are not applicable.)

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[1] = The FXS port generates low on-hook voltage transitions (at 50 Hz) for the MWI signal:

✔

Constant MWI Light Mode: The FXS constantly generates on-hook voltage transitions to constantly light up the MWI indicator on the phone. For this setup, make sure that the parameters LedMwiOnDurationTime and LedMwiOffDurationTime are configured to 1234. (The parameters NeonMwiOnDurationTime and NeonMwiOffDurationTime are not applicable.)

✔

Blinking MWI Light Mode: The FXS generates on-hook voltage transitions to light up the MWI indicator and stops transitioning the on-hook voltage to turn it off. To configure the on-off light duration (blinking duty cycle), use the parameters LedMwiOnDurationTime and LedMwiOffDurationTime. (The parameters NeonMwiOnDurationTime and NeonMwiOffDurationTime are not applicable.)

Note:

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For the parameter to take effect, a device restart is required.

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The parameter is applicable only to FXS interfaces.

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The feature can be configured per port using the ini file parameter syntax: EnableLowVoltageMwiGeneration_x, where x is the port number.

[LedMwiOnDurationTime]

Defines the duration (in msec) that the visual message waiting indicator (lamp) on the phone is lit when using the on-hook low-voltage transitions mode (i.e., EnableLowVoltageMwiGeneration is configured to 1).

If you want the MWI light indication to be lit constantly (instead of blinking), configure this parameter and the LedMwiOffDurationTime parameter to 1234.

If you want the MWI light indication to blink, configure the parameter to any desired on-duration and the LedMwiOffDurationTime parameter to any off-duration.

The valid value is 50 to 5000. The default is 1020.

Note:

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For the parameter to take effect, a device restart is required.

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The parameter is applicable only to FXS interfaces.

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The parameter applies to all FXS ports.

[LedMwiOffDurationTime]

Defines the duration (in msec) that the visual message waiting indicator (lamp) on the phone is off when using the on-hook low-voltage transitions mode (i.e., EnableLowVoltageMwiGeneration is configured to 1).

If you want the MWI light indication to be lit constantly (instead of blinking), configure this parameter and the LedMwiOnDurationTime parameter to 1234.

If you want the MWI light indication to blink, configure the parameter to any desired off-duration and the LedMwiOnDurationTime parameter to any on-duration.

The valid value is 50 to 5000. The default is 60.

Note:

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For the parameter to take effect, a device restart is required.

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The parameter is applicable only to FXS interfaces.

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The parameter applies to all FXS ports.

[NeonMwiOnDurationTime]

Defines the duration (in msec) that the visual message waiting indicator (lamp) on the phone is lit when using the high-voltage mode (i.e., EnableLowVoltageMwiGeneration is configured to 0).

If you want the MWI light indication to blink, configure the parameter to any desired on-duration and the NeonMwiOffDurationTime parameter to any off-duration.

The valid value is 200 to 720. The default is 720.

Note:

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For the parameter to take effect, a device restart is required.

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The parameter is applicable only to FXS interfaces.

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The parameter applies to all FXS ports.

[NeonMwiOffDurationTime]

Defines the duration (in msec) that the visual message waiting indicator (lamp) on the phone is off when using the high-voltage mode (i.e., EnableLowVoltageMwiGeneration is configured to 0).

If you want the MWI light indication to blink, configure the parameter to any desired off-duration and the NeonMwiOnDurationTime parameter to any on-duration.

The valid value is 200 to 1200. The default is 1200.

Note:

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For the parameter to take effect, a device restart is required.

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The parameter is applicable only to FXS interfaces.

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The parameter applies to all FXS ports.