Yealink Voicemail Configuration on Grandstream UCM6102

[adam.comws]

Good day,

I would like to set up Voicemail on my Yealink T41P phone using a time condition rule.

When the store closes at 6pm, I would like incoming calls to only ring on extension 1003 and that extension must take a voicemail message.

Also, how does the person at extension 1003 retrieve said message the following morning?

We are currently making use of a Grandstream UCM6102 PBX with the following Yealink phones:

T48G
T41P
T23G
W52P

We do not want voicemail for the other extensions at all.

[CWR]

So *97 if I recall on the UCM. You could program a blf on the phone to call this. (It might be *98 - one asks for extension, the other doesn't).
Do you want the call, after hours, to actually ring 1003? or go directly to 1003 voicemail? Do you want this to happen automatically, or should the user press a button to make this happen?