RCA 25403/04 - Manual (Page 30)

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Operation
NOTE: If you want to answer with the speakerphone, press the INTERCOM or SPEAKER button. If you want to answer by headset, press the HEADSET button (the
headset must be connected). To answer by handset, lift the handset.
NOTE: Press SPEAKER or lift the handset to automatically select a party. If you receive an incoming call and intercom call at the same time the unit automatically
selects the ringing line.
Intercom Hold
1. Make an intercom call or answer an intercom call.
2. Press the HOLD button. The Intercom indicator flashes green.
NOTE:
• When the intercom is on hold, you may not receive another intercom.
• If the other party terminates intercom, intercom hold is also released.
Intercom Conference Calls
This feature allows you to have a 3-way conversation using the intercom feature and an open line.
1. Place a call or make an intercom call.
2. Press the HOLD button.
3. Place a call on another line or make an intercom call.
4. Press the CONFERENCE button.
5. Speak to both parties.
NOTE: If you have more than one party on hold (telephone line or intercom), you must select the line for the party you want to conference with.
To disconnect one party:
Press the line or intercom button for the person you want to continue speaking with, and the other party is automatically disconnected.