Direct to voicemail transfer with BLF in asterisk - T46G

[velocityonline]

I am using the T46. Firmware=28.73.0.50
I have a prefix button set to "*"
With a caller on the line I hit the Prefix then hit the BLF and the Voicemail comes through on my line, it does not connect the original caller to the voicemail, original caller is still on hold.

If I create a DTMF button with value "##*{exten}#".
I can hit the DTMF button and it properly sends them to the voicemail.
I would just have to create a button for each person and I do not have the space.

My Intercom button using a prefix of *80 works great with the BLF buttons.

I also tried 28.80.0.60

Are there any work arounds for this model?
Does it work properly on the T48?