Toshiba Digital Telephone User Manual

Off-hook Call Announce (OCA)

This feature enables you to call and speak through either the handset or the speaker of an off-
hook, busy digital telephone. The called station must be set in system programming for this 
feature to work.

The calling station can be set in system programming for OCA to occur automatically when 
calling a busy-off-hook station or by dialing an access code after receiving busy tone. 
Automatic OCA only functions on Voice First Signaling systems. The following procedure 
covers both calling options.

♦

Handset Off-hook Call Announce (HS-OCA) – lets callers make an announcement 
through the handset (or headset). No special hardware is required. 

♦

Speaker Off-hook Call Announce (SP-OCA) – lets callers make an announcement 
through the speaker of an off-hook, busy digital phone. The called telephone must be 
equipped with optional hardware.

When you receive an HS-OCA call while you are on another call, you 
hear a short warning tone (optional), followed by an announcement. 
You are the only one who hears the tone/announcement. The station 
[

] sending the HS-OCA is displayed on your LCD. Stations in the DND mode cannot 

receive OCA calls unless the calling station is programmed for DND Override.

While on a speaker OCA call, 

0LF

 and 

0LFURSKQ&XWRII

 can be used to prevent an OCA 

caller from listening to your conversation with the original party (see 

➤

➤

Lift the handset and dial the [DN]. You hear a single tone (optional) or nothing and can 
talk to the station (Automatic OCA).

If you receive busy tone, press 

 to OCA the station and talk. 

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.