NEC Xen TOPAZ Quick Reference Manual page 7

If your call doesn't go through...
Set Camp On / Callback
(Hear Busy Tone
or No Answer)
<Camp On> In case of Intercom Call, when you hear ringing, wait for the called party to answer.
In case of Outside Call, when you hear Dial Tone, begin telephone number dialling.
<Callback> In case of Intercom Call, when your phone starts the ringing, lift handset and wait for the
called party to answer.
In case of Outside Call, when your phone starts the ringing, lift handset, hear Dial Tone,
and begin telephone number dialling.
This function is applicable in case all trunks are busy condition. (not applicable for dialled outside party
busy)
Cancel Camp On / Callback
When Camp On set. – OR – simply press the Camp On key
Set / Answer a Message Waiting
Set
(Hear Busy Tone
or No Answer)
Your phone's
Answer
Indicator is
flashing in Red
When you set a MW, the called party's Indicator starts to flash, and your Indicator is lit in Red.
When you answer a MW, the Indicator shall automatically be off when the called party answers.
8 5 0
Camp On Key
(851+35) [Lit Red when set]
8
MW Key
(851+38)
8
MW Key
(851+38)
<Camp On>
<Callback>
8 7 0
4 1
4 1
6
Wait without
hanging up
Wait for the
system to call
you back