Mwi not working any more on freepbx 2.8 and asterisk

mwi indication for voicemail is nog working any more.
on both Aastra 57i and Thomson ST2030S phones.
I have this on 2 new installations.

any one experience same problem?

is it an asterisk issue or a freepbx issue?

have you tried the well-known

in voicemail.conf?


nobody with the same experience.