Uniden DTL-8R-1 User Operation And Specification page 28

Step 2 When connected, The Handset goes to Talk mode and Talk icon is turned on and
shows current volume.
Step 3 If the user enters dial 1,2, 3 then LCD shows the dial number pressed as dial echo.
Step 4 The LCD shows this message to indicate call is taking place.
Talk key
Talk
Talk
Speaker key
Speaker
Speaker
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