B
ASIC
T
ONES
HCXTD850, Rev. A02, September 2001
5-1
5
R
EFERENCE
About this
section
This reference section provides additional information you
may need while placing and receiving calls, along with
tables.
Basic Tones
About tones
Your telephone system has a number of tones that inform
you of the progress or status of your call. These are some
of the tones you may hear:
Table 5-1 Tone descriptions
Tone
Definition
Dial tone
a continuous tone that indicates that you
can begin dialing
Ringback
tone
a ring consisting of one second on and
three seconds off, indicating that the
telephone of the called party is ringing.
Busy tone
a tone interrupted 60 times per minute
indicating that the party you’ve called is
busy (beeep-beeep-beeep)
Call waiting
tone
a muted tone of two to four seconds that
you hear during a conversation. This tone
indicates that you have another incoming
call waiting to be answered
Summary of Contents for SelecSet 900 Series
Page 7: ...TABLE OF CONTENTS SELECSET 900 USER GUIDE viii HCXTD850 Rev A02 September 2001 ...
Page 9: ...LIST OF FIGURES SELECSET 900 USER GUIDE x HCXTD850 Rev A02 September 2001 ...
Page 87: ...TRANSFERRING CALLS SELECSET 900 USER GUIDE 2 50 HCXTD850 Rev A02 August 2001 ...
Page 183: ...AUTHORIZATION CODE SUMMARY SELECSET 900 USER GUIDE 5 10 HCXTD850 Rev A02 September 2001 ...
Page 187: ...INDEX SELECSET 900 USER GUIDE IX 4 HCXTD850 Rev A02 September 2001 ...