Off-hook Call Announce (OCA)
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50
UST DK Electronic Telephone
Stations in the DND mode cannot receive OCA calls unless the calling
station is programmed for DND Override.
While on a speaker OCA call,
and
can be used to prevent
an OCA caller from listening to your conversation with the original party (see “Microphone
Cut-Off” on Page 49).
Voice First Signaling
➤
To make an OCA call
Tone Signaling
➤
To make an OCA call
1. Lift the handset and dial the
[DN].
You hear a single tone (optional) or nothing and can
talk to the station (Automatic OCA).
2. Press
to OCA the station
and talk, if you receive a busy
tone.
An optional tone is heard at
the busy station, indicating
that you are connected on an
OCA call.
1. Lift the handset and
dial the [DN].
You may hear busy or ring tone.
2. Press
!
if you hear
busy tone and speak
to the called station
...or
!
if you hear a
ring tone and speak
to the called station.
If you hear busy or ring tone after dialing the first digit (2 or 1),
disregard the tone and dial the second digit to OCA the called
telephone.
If you still hear a busy tone after dialing 21 or 12, the called
telephone is either busy on a speakerphone call or does not
have the OCA option set in system programming. Either
condition blocks OCA.
NO. 204
210 BUSY OVRD
NO. 203
205 BUSY OVR