Standard Telephone Features 5-91
5.2 Standard Telephone Features W
Conditions
• Class of Service (COS) is used to define the features which are allowed for a group of
extensions. Each extension is assigned a COS number. The programmable items are as
follows.
1) Outgoing call restriction level (Day mode / Night mode) – 1 through 8
2) Restriction of an outside call duration
3) Transfer a call to an outside party
4) Forward a call to an outside party
5) Executive Busy Override
6) Executive Busy Override Deny
7) Override Do Not Disturb of the called extension
8) Account Code Entry operation – verified - all calls / verified - to toll restriction
override / option
9) Off-Hook Call Announcement (OHCA)
10) The number of allowed dialing digits during an outside call
Programming References
• System Programming — Installation Manual
[121] Walking COS Password
[601] Class of Service
Feature References
Class of Service (COS) (→ see Installation Manual)
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