RCA 25423/24 - Manual (Page 18)

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Flash Time
1. Press the Menu button while in standby mode.
2. Use the Vol (+ or -) buttons to scroll up or down to SET PHONE OPTIONS.
3. Press the Sel/Save button.
4. Use the Vol (+ or -) buttons to scroll up or down to SET FLASH TIME.
5. Press the Sel/Save button.
6. Use the Vol (+ or -) buttons to scroll up or down
through the flash time options.
The default setting is 600ms.
7. Press the Sel/Save button to save.
NOTE: You may press the Exit button at any time to exit.
Call Alert Tone
Turn on the Call Alert to hear a tone for incoming calls while you are on the telephone. This
function notifies you that there is a incoming call while you are using the phone. If you do
not want this tone to disturb your conversation, you can set it to OFF.
1. Press the Menu button while in standby mode.
2. Use the Vol (+ or -) buttons to scroll up or down to SET PHONE OPTIONS.
3. Press the Sel/Save button.
4. Use the Vol (+ or -) buttons to scroll up or down to CALL ALERT TONE.
5. Press the Sel/Save button.
6. Use the Vol (+ or -) buttons to scroll up or down to ON or OFF.
7. Press the Sel/Save button to save. The cursor automatically moves to Line 2.
8. Repeat steps 6 and 7 for each telephone line. After you select a tone for Line 4, press
the Exit button.
No Unknown/Blocked
This option allows you to decide whether the unknown or blocked caller ID calls are saved
or not. If you select YES, the unknown or blocked calls will be saved.
1. Press the Menu button while in standby mode.
2. Use the Vol (+ or -) buttons to scroll up or down to SET PHONE OPTIONS.
3. Press the Sel/Save button.
4. Use the Vol (+ or -) buttons to scroll up or down to NO UNKNOWN/BLOCKED.
5. Press the Sel/Save button.
6. Use the Vol (+ or -) buttons to scroll up or down to YES or NO. The default is YES.
Programming the Telephone