CME MWI Won't Light

Unanswered Question
Dec 19th, 2007
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I am running CME 4.1 with CUE 2.3. When a message is left for an extension, the MWI envelope indicator appears for the extension, but the MWI light does not light. When I dial the MWI on number, the envelope appears, but no light. When I dial the MWI off number, the envelope disappears. I have double-checked my configuration on the CME. I will attach a copy of the configuration. Help!



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Can you add this command:

voice service voip

allow-connections h323 to h323

allow-connections h323 to sip

allow-connections sip to h323

ephone-dn 63

number 8000.... <--extra dot

mwi on



ephone-dn 64

number 8001.... <--extra dot

mwi off

dial-peer voice 150 voip

incoming called-number 800[01].... <-- change here

codec g711ulaw

no vad

Here is the good link:

Please rate the post if help.


Rob Huffman Wed, 12/19/2007 - 10:25
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Hi Kim,

It almost sounds to me like this isn't the Primary Line on the phone (have a look at this command);


To designate a line other than the primary line of an ephone to be associated with the ephone's message waiting indicator (MWI) lamp, use the mwi-line command in ephone configuration mode. To return to the default, use the no form of this command.

mwi-line line-number

no mwi-line

Syntax Description


Line number to be associated with the MWI lamp. Range is from 1 to 34.

Command Default

A phone's MWI lamp is lit only when there is a message waiting for the phone's primary line (line 1).

From this good doc;

Hope this helps!



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