Introduction 1-19
1. Introduction
Intrusion tone fol-
lowed by a ringing-
beep tone
The party you called is on
the phone, but has
received a call waiting
indication. Stay on the
phone until the party
answers.
Long tone, followed by
an intrusion tone
repeated every 8 secs.
Busy override and
speaker call intrusion
reminder
1-sec. tone after dialing There is a short queue for
an outgoing trunk.
Ringing (ringback)
tone The phone you called is
ringing.
Short tone every 20 sec. Internal call waiting
Single (conference)
tone A new party has been
added to a conference.
Steady high tone A technician is testing
your phone.
3 short tones (confir-
mation tone) A feature has been suc-
cessfully activated.
3 short tones followed
by dial tone Additional input, such as
a PIN, is required.
30-sec. tone after dial-
ing There is a long queue for
an outgoing trunk.
2 short tones every 20
secs. External call waiting
Very short tone after
dialing You have been routed to
the next outgoing trunk or
to a more expensive
route.
Wavering (error) tone Invalid feature request
Sound Meaning