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