RCA 25403 - Manual (Page 24)

24
Operation
3. Press the HEADSET button (headset mode).
4. When finished, hang up the handset, press the SPEAKER button or press the HEADSET button.
If you receive a call on a line other than the priority line,
1. Pick up the handset and press the corresponding line button, OR
2. Press the SPEAKER button and press the corresponding line button (speakerphone mode), OR
3. Press the corresponding line button, and then press the HEADSET button (headset mode).
4. When you are finished, hang up the handset, press the SPEAKER button, or press the HEADSET button.
NOTE: Whether you are making or receiving a call, the caller is disconnected if you press another line without putting the call on hold first.
Switching Between the Speakerphone, Handset, and Headset
To switch to the speakerphone, press SPEAKER. The speakerphone indicator turns on.
To switch to the handset, pick up the handset. The speakerphone or headset turns off.
To switch to the headset, press HEADSET to enable the headset. The headset indicator turns on.
Mute
To have a private, off-line conversation, use the MUTE feature. The party on the other end of the line cannot hear you, but you can still hear
them.
1. Press MUTE to activate the mute feature. The mute indicator turns on.
2. Press MUTE again to turn it off.
NOTE: Switching from speakerphone to handset or headset cancels mute.