RCA 25403 - Manual (Page 22)

22
Operation
Basic Operation
Your phone provides the convenience of accessing four separate telephone lines, each obtained from the telephone company and each
having its own phone number. This is generally applicable to small offices. It provides for 16 telephones (or stations) to share multiple lines.
Each station is interconnected to all others by an intercom.
Making Calls with the Handset
1. Pick up the handset and the phone automatically selects the priority line. If the priority line is occupied, it selects an open line.
2. Wait for a dial tone, then dial a phone number.
3. Hang up the handset when finished.
Making Calls with the Speakerphone
1. Press the SPEAKER button and the phone automatically selects the priority line. If the priority line is occupied, it selects an open line.
OR
Press a line button to select a line.
2. Wait for a dial tone then dial a phone number.
3. Press SPEAKER when finished.
NOTE: Only one-way conversation is possible in speakerphone mode. When you are speaking, you are transmitting. When you are listening, you are receiving. You
can’t do both at the same time. The phone will automatically switch between transmitting and receiving depending on the level of the voice or the room noise picked
up by the speakerphone mic.
NOTE: If a line goes off-hook, the call timer counts time until all the lines go on hook. The timer serves for 4 lines.