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Class of Service Table
Class of Service Table
Table D-2 summarizes the Classes of Service of mailboxes.
Table D-2. Class of Service
Mailbox
Message Greeting
Transfer Mailbox
Outcalling
COS Storage
Length Length
Permitted *Type
Permission
10 min
60 min
10 min
60 min
60 min
60 min
0 min
0 min
0 min
60 min
0 min
0 min
0 min
0 min
0 min
5 min
10 min
2 min
2 min
Yes
Yes
Call Answer
Call Answer
No
No
Yes
Yes
No
Yes
No
No
No
No
No
No
No
No
No
1
2
3
4
5
6
15
16
17
**18
19
20
21
22
23
Yes
Yes
Call Answer
Call Answer
5 min
10 min
2 min
2 min
No
Call Answer
10 min
2 min
Call Answer
10 min
2 min
No
0 min
0 min
0 min
N/A
N/A
N/A
No
No
No
Automated Attendant 1
Automated Attendant 2
Automated Attendant 3
30 min 2 min
No
Call Answer
0 min 4 min
No
Bulletin Board
Yes
Transfer-Only0 min 2 min
0 min
0 min
0 min
N/A
N/A
N/A
Yes
Yes
Yes
Automated Attendant 1
Automated Attendant 2
Automated Attendant 3
* Only the mailboxes for extensions 10–57, 71–74, and 771–776 can have a “Transfer
Permitted” Class of Service (COS 1-4 and 20-23).
** Class of Service 18 should be used only for special situations, such as dictation where
a long message needs to be recorded.
D-2
Letter Key and Class of Service Table