Number
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61 - 68
69
70
71
72
73
Features Guide
Flexible Feature Numbers
Account code entry
Door opener
Reserved
Station program clear
Message waiting
External relay on
Call forwarding / do not disturb
Call pickup deny
External ringing
Call waiting / OHCA / Whisper OHCA
Executive busy override deny
Pickup dialling programme
Absent message
Timed reminder
Electronic station lockout
Night service mode
Parallel telephone mode
Background music - external
Paging - deny
Primary COS select
Secondary COS select
log-in / log-out
Operator 1 call
Operator 2 call
Automatic callback busy cancel
Reserved
External ringer answer
Timed reminder, remote
Call log, incoming
Do not disturb for DDI
CLIR
Feature
1.1 General Features
Default
49
55
—
790
70
67
710
720
730
731
733
74
750
76
77
78
69
65
721
791
793
45
61
62
46
—
47
7
54
56
57
117