Specifications

161
Call Processing Flow Charts
End-to-End Loop Start (Central Office/PABX Station)
End-to-End
POTS Line – Ring Start
Detect Ringing
Voltage
Ring Light
on briefly
Wait programmed
number of rings
Turn on
Answer Light
Close Tip-Ring to
answer
Wait 1 second
Audio cut through
Voice
Prompt
Send Beep
Play Overdial
Voice Prompt
YesNo
Accept overdial
from caller
Pulse
Digits?
DTMF?
Flash Loop
Light
Flash
Test 1, Test 2
Subscriber number
Trunk prefix +
feed digits
Check
Subscriber
Number
End Page
Open connection
between Tip - Ring
Answer &
Loop Lights