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Voicemail MWI SIP Notify with third party

voicemail is working.  MWI is not.  I can see the sip notify message come in with the ccsip messages debug and I can see a call go out to the mwi dn for the phone.  But the light is not turning on.  Here is the config

With the sip notify messages come in with the account number.  So I created an ephone-dn with that number on it.

This is a 7975 sccp phone with 8 lines


   mwi-server expires 160 port 5060 transport udp unsolicited


   mwi relay

ephone-dn  8

number 138422

mwi-type both

mwi sip

ephone 1

button 8:8

I have tried using num-exp to change 138422 to 5001 which is the first line on the phone and putting mwi sip on that dn but it still did not turn the light on.

Any help would be appreciated

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