MWI button appearance

[thenewguy]

I am sure this is a silly thing.  I have programed a lot of buttons this way but this one will not work for me.  MIVB 9.4   nupoint VM, and Micollab.
I had to change a extension to another number due to conflict is the start of the issue.  This person has one extension 6187 but she hot desk in to a acd extension 6636.  I put a multicall button of 6187 while logged into 6636 so she can answer not acd call from that number.  6187 also has a MB.  I normally put a MWI button on the 6636 so she can see she has a voicemail on 6187 and get to it.  I have 20 other extension that this works on.  This one however has the MWI button that says off in a square.  I have the MB set up in nupoint.  I also deleted it and let micollab create the MB also (same results).  I cannot find anywhere what this off is and why it is on this button.  Thanks for the help

[ZuluAlpha]

The MWI stays "off" even when there is a new message on 6187?

[ralph]

Does the MWI light turn on on the prime line's main phone?
Can you light the light manually using the feature code?

Ralph

[thenewguy]

The vm for the extension does light the light up.  This is when I try to program a mwi button for the other mailbox. The button says the label name but is gray and says off.  This is for a ring group and when it is not answered it hits its on VM box and I want a appearance of that mailbox that can be checked from a phone.  I have it going to her email but that is not enough.

[johnp]

They way I usually would do this would be created a trusted extension with mailbox, then add the ring group number as an alternate extension in it's mailbox. then add this as the MWI button. Might name  it MB RG XXXX