EvgKB said:
What do you think about this setup […]
It won't work as you expect.
In order for a call to be directed to a Guest Mailbox, it has to be transferred to that Guest Mailbox. There are 3 possibilities:
[ol 1]
[li]The call is answered by the Automated Attendant and the caller dials the Guest Mailbox number.[/li]
[li]The call is answered by the Custom Call Routing and the caller dials the digit to reach the Guest Mailbox.[/li]
[li]The call is answered by someone in your office and it is manually transferred to the Guest Mailbox.[/li]
[/ol]
If you want the calls to end up in a specific mailbox instead of the General Delivery Mailbox, you will have to create a Subscriber Mailbox. (A Subscriber Mailbox is assigned to an extension while a Guest Mailbox is not.)
A call has to be forwarded to voicemail from a specific extension in order to end up in the Subscriber Mailbox assigned to that extension. If a call gets to voicemail using other features (such as Delayed Ring Transfer or Service Modes, for instance), it ends up in the General Delivery Mailbox.
If you want the calls ringing on extension 51 to be forwarded to voicemail immediately, you use Call Forward (Feature 4). Otherwise, you use Call Forward No Answer (in programming).
EvgKB said:
The concern is that every night mode has a Control Set (which is #28).
Actually, there is one Control Set per line. The Control Set can be the same for all the lines or it can be different for each line.
For example, you could have the following setup:
[ul]
[li]Extension 21 is the Control Set for Line 1.[/li]
[li]Extension 22 is the Control Set for Line 2.[/li]
[li]Extension 23 is the Control Set for Line 3.[/li]
[li]Extension 24 is the Control Set for Line 4.[/li]
[/ul]
That way, when the person at Extension 24 leaves at the end of the day, he/she turns a Service Mode on and Line 4 is now answered by the voicemail. In the same way, when the person at Extension 23 leaves at the end of the day, he/she turns a Service Mode on and Line 3 is now answered by the voicemail.
The next day, when the person at Extension 24 arrives, he/she turns off the Service Mode and Line 4 is no longer answered by the voicemail, but Line 3 is still answered by the voicemail.
The Control Set only allows an extension to turn the Service Modes on or off for the lines under its control.