NEC NEAX 2400 IPX Reference Manual page 8

REPEAT:
Lift handset.
Press the Soft Key below "S & R", and the number
is redialled.
Call Wait – Extension
If you dial a busy extension.
SET:
Press Softkey below "CW".
Your call is now camped on.
RECEIVE:
Press Answer.
Second call is now connected.
You can now swap between calls by pressing
Answer.
When finished with one call, hang up and second
call will ring back.
Call Back
If you dial a busy extension:
SET:
Press Softkey below "CB".
Hang up.
You may originate or receive calls during this
waiting period.
When both extensions are free, your phone will
ring.
Lift handset* and the previous busy extension will
ring.
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