Greetings,
I Have DSX80 with system v2 software.

Customer wants:
Day-Lines 1-4 at 300 ring
busy/rna
Ring 303, 305 and 312. Ring Group 1 600
RNA Msg Ctr 400 button on 5 phones

Night Line 1-4 to 301,302 (nurses) ring 10 times
Busy RNA msg.ctr 400

Night Button on 300 and also auto switch
monday- sunday 9:00 am to 5 pm.

The real problem I am having is the overflowing
from a ring group 600 to msg.ctr during day
and the extended rings at night.

Also DIL isn't option and Key Ring possibly just not
sure about it overflowing.. or overflowing ring group to msgctr.....

Appreciate any insight.

Doug

I would use call coverage delay or immediate keys instead of ring groups.
You can DIL to 1 phone example 302, call coverage immediate or delay to the phones you need to, ring no answer back to the phone the line is DIL to mailbox (302). Put a message center button (302)on the other phones you need to.