Need some help on essential embedded voice mail. got a company that doesn't want voicemail but only on 2 phones. Problem is I turn off voicemail on the ext. but if they send it direct to user voicemail they get (that person isn't available) and they can still leave a message. Anyway to disable that?
Thanks

You can't prevent a user from pressing the envelope button and dialing an extension number + Select to send a caller to a voicemail box.
However, you can take the typical shortcode of #XXX / Voicemail Collect / "#"N and add another like #123 / Barred to prevent transferring to mailbox 123

They only want 2 voice mail box one is main phone and the other is the owner have 35 phones

Be creative. Use multiple short codes. Say that the Main mailbox is 100, and the owner is 102.

Remove
#XXX / Voicemail Collect / "#"N

Add
#100 / Voicemail Collect / "#"100
#102 / Voicemail Collect / "#"102

# plus anything else will get wave-off and Incompatible

And tell them NOT to use the Envelope button for transfers... (That is voicemail Transfer as well)