I'm trying to save our company a few bucks and setup central voicemail between our OS7200 (which doesnt have SVMI card) and our OS7100 with its inbuilt SVMI.
Firmware version 4.30f (so we dont need a SPNET license).
Spnet is working and handsets can call both ways. Also voicemail appears to work correctly on OS7200 handsets via VMMMSG button.
All forward to voicemail works and I get the mailbox for the phone in question.
My problem occurs when forwarding to voicemail when unanswered calls happen or busy. It basically forwards to voicemail but asks for a password instead of going to the phones mailbox.
Any tips to fix this? I've tried reading everything I can and searching but just cant get this last bit working

Thanks!