AT&T Merlin II Feature Module 2 System Manual page 164

Tones
DESCRIPTION
MERLIN II System Features
2-158
Your MERLIN II system
you of the progress of a
feedback discussed here
cases it is the same tones generated by the outside telephone system.
Feedback
Steady tone
Intercom dial tone
A slow pulsed tone
Intercom busy tone
A beep
Voice signal tone
A ringing sound
Intercom ringing tone
Medium pulsed tone
Fast busy tone
Incorrect dialing tone
Forced idle tone
Error tone
Hold reminder
Call Park reminder
Line Request tone
voice terminal provides the following tortes to inform
call that you are placing or about to place. The
is generated by the MERLIN II system. In many
Sound Meaning of the Feedback
You can begin dialing when
you are ready.
The line is busy.
You can announce the call
through the other person's
voice terminal speaker.
The call is ringing at the other
person's voice terminal.
You have made an error or no
lines in a pool are available.
You have dialed a number
Alternating high and
low tone incorrectly.
The system is being
Two beeps
administered.
A beep You have entered an illegal
number or character in an
administration sequence.
A beep You have had a call on hold
for at least 60 seconds.
A beep A call has been parked at
your voice terminal for at
least one minute (Your voice
terminal beeps after a call has
been parked for one minute
and then again after two
minutes. )
The line you have requested
A beep
is available.