AT&T 3 manual Class of Service Table, Table D-2. Class of Service

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
1	10 min	5 min	2 min	Yes	Call Answer	No
2	60 min	10 min	2 min	Yes	Call Answer	No
3	10 min	5 min	2 min	Yes	Call Answer	Yes
4	60 min	10 min	2 min	Yes	Call Answer	Yes
5	60 min	10 min	2 min	No	Call Answer	No
6	60 min	10 min	2 min	No	Call Answer	Yes
15	0 min	0 min	N/A	No	Automated Attendant 1	No
16	0 min	0 min	N/A	No	Automated Attendant 2	No
17	0 min	0 min	N/A	No	Automated Attendant 3	No
**18	60 min	30 min	2 min	No	Call Answer	No
19	0 min	0 min	4 min	No	Bulletin Board	No
20	0 min	0 min	2 min	Yes	Transfer-Only	No
21	0 min	0 min	N/A	Yes	Automated Attendant 1	No
22	0 min	0 min	N/A	Yes	Automated Attendant 2	No
23	0 min	0 min	N/A	Yes	Automated Attendant 3	No

*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-2Letter Key and Class of Service Table