AT&T MLX-10 Smoke Alarm User Manual


 
Making and Answering Calls
Tones
When making a call or using a feature, you may hear a tone.
Each tone has its own meaning.
Tone
Meaning
Dial tone (steady tone)
You can make a call.
Busy (slow repeating tone)
The phone you are calling is
busy.
Fast busy (fast repeating
No lines are available.
tone)
Alternating high and low
You dialed a number
tones
incorrectly or misused a
feature.
Confirmation tone (double
You used a feature properly.
break in dial tone followed
by steady tone)
Callback tone (five short
The outside line or the
beeps)
extension is busy and your
call is programmed for
Callback. (See Chapter 5 for
more on Callback.)
Call Waiting tone (one or
You have an inside call (one
two beeps while you are on
beep) or outside call (two
another call)
beeps) waiting.
Tones 2-9