AT&T Merlin II Release 3 System Manual page 21

SIGNALS
Your phone provides the following signals to announce a call you are about to
receive, or to inform you of the status of a call you're about to place or have
placed. In many cases, these signals are the same as the ones generated by
your phone at home.
NOTE: If your system type is Behind-Switch, your signals may be different.
See the documentation provided with the host system.
One short and one long ring:
IIIII IIIIIIIIIIII
Transferred call. A call is being transferred to you.
Two short and one long ring:
IIIII IIIII IIIIIIIIIIII
Ringing intercom call. Announces an incoming or transferred
intercom call on your phone.
One long ring:
IIIIIIIIIIIIIIIII
Outside call. An outside call is coming into your phone.
NOTE:
Steady tone:
IIIIIIIIIIIIIIIIIIIIIIIII
Intercom dial tone. You can begin dialing when you are ready.
Slow pulsed tone:
IIIII IIIII IIIII
Intercom busy tone. The line is busy.
Long ringing tone:
IIIIIIIIIIIIIII
Intercom ringing tone. The call is ringing at the other person's
phone.
Medium pulsed tone:
III III III III
Fast busy tone. You have made a dialing error or no lines in a
pool are available.
Alternating high and low tone:
IIIII III IIIII III
Incorrect dialing tone. You have dialed a number incorrectly.
Two beeps:
II II
Forced idle tone. The system is being administered.
One beep:
II
The meaning of one beep depends on the status of the call or
feature selected, as shown below:
Error tone. You have entered an illegal number or character in
an administration sequence.
Voice signal tone. You can begin speaking and be heard
through the other person's phone speaker.
Hold reminder. You have had a call on hold for at least 60
seconds.
Call Park reminder. A call has been parked (placed on hold for
someone else to pick up) at your phone for at least one
minute. (Your phone beeps after a call has been parked for
one minute and then again after two minutes, etc.)
Line Request tone. The line you have requested is available.
Manual Signaling tone. The 7406D digital phone has a timed
beep; on the analog phones the beep continues as long as you
You can program your phone with a ringing pattern
that is different from the ringing sound of nearby
phones. See "Personalized Ringing" in Section 3,
"Reference."
hold down the Manual Signaling button.
MERLIN II System Telephones
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