AT&T 3 Manuel D’Utilisation
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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
0 min
0 min
60 min
0 min
0 min
0 min
0 min
0 min
0 min
0 min
5 min
10 min
2 min
2 min
2 min
Yes
Yes
Yes
Call Answer
Call Answer
Call Answer
No
No
No
Yes
Yes
Yes
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
1
2
3
4
4
5
6
15
16
17
16
17
**18
19
20
21
22
23
22
23
Yes
Yes
Yes
Call Answer
Call Answer
Call Answer
5 min
10 min
2 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
0 min
0 min
N/A
N/A
N/A
N/A
N/A
No
No
No
No
No
Automated Attendant 1
Automated Attendant 2
Automated Attendant 3
Automated Attendant 2
Automated Attendant 3
30 min
2 min
No
Call Answer
0 min
4 min
No
Bulletin Board
Yes
Transfer-Only
0 min
2 min
0 min
0 min
0 min
0 min
0 min
N/A
N/A
N/A
N/A
N/A
Yes
Yes
Yes
Yes
Yes
Automated Attendant 1
Automated Attendant 2
Automated Attendant 3
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