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Trillium Standard Practice
0
Status
Call arrive
I
Hold Recall
!
Busy
Override
3
Back Tone
Tone Signal
Tone Frequency
Synchronizes
with incoming ringing signal.
a: 430 Hz
1132s
lt32s
b: 580 Hz
:::::::::.
:;:s:g :, :.:.:: ,.,:,: ::: -:::::.:::i' :._-
.:i,:.:_.:
:.:.:.: :.:.:::.:p~:.~
:. x.:+>:.:.:.:.:.:.:.:+:
:,:,
,,.,. i :.:,:
. . .
I;~:j:::~::::::::::~:::~:
:.:,:,.,
:.:. : .:.: .' . .' .' .' . ::.:.: ." ::.A:
..:.::.::
j:::: s:: ..:. : . . . . :::x:;:;:
:j::::::,;
.430 Hz
modulated 16 Hz
580 Hz
a: 430 Hz
b: 580 Hz
modulated 16 Hz
_i
a: 430 Hz
b: 580 Hz
modulated 16 Hz
I=izi
a: 430 Hz
b: 580 Hz
Barge in
4
f
0.5s
"
modulated 16 Hz
400 Hz
I
Back Tone
,-=j
400 Hz
The
5
restricted
outgoing
call
l
Continuous
0.33s
*
400 Hz
0.16s
IJj__
TABLE
3-2
C.O. LINE
TONES
Features and Services
Page 8
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