DSG Technology IM 2000, User Manual

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Chapter 4 Integration with PBX
4-10
Some PBX sends Ringback CPT with 2 ringing pulses and 2 silence pulses.
.
Figure 4-7
Define Ringback First High and Ringback First Low in milliseconds. If the PBX sends
Ringback CPT with 2 ringing pulses, define the Ringback Second High and Ringback
Second Low, or else set the two parameters to 0 milliseconds.
Ringback CPT Cycle This parameter defines how many times the Ringback Call
Progress Tones from an extension should be received before the extension status is
identified as No-Answer. IM1200 will retrieve the call when the status has been
confirmed.
Busy/Error CPT Similar to Ringback CPT, Busy and Error Call Progress Tones are
composed of First High, First Low, Second High and Second Low parameters. Busy
CPT is sent by the PBX to indicate the extension status is Busy, and Error CPT usually
indicates the extension is not legal. Define these parameters, and leave Second Low
and Second High as 0 if not needed.
Busy/Error CPT Cycle Similar to Ringback CPT Cycle, Busy and Error CPT Cycles
define how many times the call progress tones should be received before the extension
status is identified as busy or error. IM1200 will retrieve the call when the status has
been confirmed.
Call Progress Tone Tolerance This parameter tells how much deviation the actual
call progress tones sent from the PBX can be from the set values. Select High or Low
for the setting.
6.
Click
OK
or
Apply
when done with all the modifications.
Automatic Call Progress Learning
Instead of manually entering the call progress tone parameters, IM1200 provides an
alternative way of capturing and learning and assigning those parameters to itself,
called Automatic Call Progress Learning (ACPL) method. This method requires DTMF
System Programming (
For DTMF System Programming, see Chapter 9 ).
Once you are in DTMF System Programming Mode, follow these steps:
1. Enter Function Code [242] and set up the extension you want to use for ACPL.
2. Make sure the phone of the ACPL extension is on-hook.