Teleco UST DK User Manual page 56

Off-hook Call Announce (OCA)
2. If you hear busy tone,
press
the called station
...or if you hear a ring
tone, press
speak to the called
station.
HS-OCA
To answer an HS-OCA talkback call
Press and hold
...or
Press the same
Note
button to toggle
between parties.
To disconnect an HS-OCA call to your station
Press
SP-OCA
To answer an SP-OCA call
Speak toward the microphone of your phone. You may want to hold your hand over the
handset mouth piece to prevent the other party from hearing you.
To disconnect an SP-OCA call to your station
Press
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If you hear busy or ring tone after dialing the first digit (2 or 1),
and speak to 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
and
have the OCA option set in system programming. Either
condition blocks OCA.
. This puts the original party on hold and you are connected to
the HS-OCA call for as long as you press
When you release
but you can still hear the original and HS-OCA parties.
You are connected to the party that has sent the HS-OCA call.
The original party is on hold.
.
HS-OCA Talkback acts as an ON/OFF switch between the two
parties.
. The HS-OCA call disconnects.
. The SP-OCA call made to your station disconnects.
, the HS-OCA party can not hear you,
UST DK Digital Telephone
.