IP Office VM prompts Silent

[gmpotu]

With Avaya IP Office 500v2 (R7 Manager)

Sometime when you go to check your voicemail (shortcode *17) or whatever method really. The phone is silent with no voicemail prompts from IP Office.
This tends to only happen on 6408D+ handsets and the same voicemail seems to work fine if you call to check using your cell. So it seems it's something about this handset.
Does anyone have a solution to this?

 

[tlpeter]

1) you are out of vm channels or

2)It just does not work as they are not supported anymore on 7.0:

2.12 Telephones Supported in IP Office Release 7.0
All telephones supported in IP Office 6.1 will also be supported in Release 7.0 with the exception of the 6400 series digital phones.


BAZINGA!

I'm not insane, my mother had me tested!