NEC Univerge DT750 User Manual page 157

[Talk]
1 RTP Alarm
2 DTMF Tone
Key Touch Tone
3
4 Hold Music
5
Prefix
STEP 6: Select Prefix 1 and then press
1
(Right-cursor)
key.)
[Prefix]
1
Prefix 1
2 Prefix 2
3
Prefix 3
↓
STEP 7: Enter a prefix by using the digit keys. After en-
tering the prefix, press
key.
1/1
Back
OK
(Enter)
or OK soft key. (or press
1/1
Back OK
or OK soft
(Enter)
[Prefix 1]
Input a prefix number.
BK
STEP 8: The display goes back the Prefix screen at
,
STEP 5. If multiple prefixes need to be set, re-
1
peat STEP 5 and STEP 6. In that case, select
Prefix 2 and
2
Note: A maximum of 10 digits (0-9, * and #) can be set
as a prefix.
Note: When prefix is added, up to 32 digits including
the prefix can be sent as dial number.
151
1
Back OK
3
Prefix 3.