FEATURES GUIDE

General Features
Features Guide 73
Class of Service (COS)
Description
COS is used to define the features which are allowed for a group of extensions. Each extension
is assigned by the operator a primary and a secondary COS number. Eight Classes of Service
are available.
Conditions
• The operator can switch the extension's COS between a primary and a secondary.
• A list of the programmable items is given below:
a) The ability to forward a call to an outside party
b) The ability to transfer a call to an outside party
c) The ability to override Do Not Disturb of the called station
d) Account Code Entry operation — verified — all calls/verified — toll restriction
override/option
e) The ability to set Executive Busy Override
f) The ability to deny Executive Busy Override
g) Outgoing call restriction level (Day mode/Night mode)
h) The ability to set Call Forwarding — Follow Me
i) System speed dialling call restriction level (Day mode/Night mode)
j) The ability to switch the Day/Night service
k) The ability to unlock the door opener
l) The ability to turn on the external relay
m)
The ability to set Do Not Disturb (DND) for Intelligent Call Handling 1:1 Call
n) The ability to set Calling/Connected Line Identification Restriction (CLIR/COLR)
o)
The ability to set Call Forwarding — by ISDN Line (CFU/CFB/CFNR)
p) The ability to perform Off-Hook Call Announcement (OHCA)
q) The ability to set Call Forwarding — from Hunting Group
r) The ability to set Doorphone Call Forwarding to CO Line