Max 8/16 and T1/E1 User’s Guide – Chapter 4
Page 52
Reverse Polarity for PBX Billing
The polarity reversal is supported for providing call connection time
information.
The battery polarity is reversed by the Max's FXS port to indicate
that a call is connected. The polarity is reversed throughout the
entire conversation. When the far end disconnects, the battery
polarity is changed back to normal by the FXS port to indicate a call
disconnect. (Some PBX systems use battery reversal indication to
start billing.)
To activate the polarity reversal feature, log into Max 8/16 or T1/E1
with the console interface and type:
1. SYS_NAME:> /CONFIG/FXS
2. SYS_NAME:/CONFIG/FXS> change pola on
To deactivate the polarity reversal feature, log into Max 8/16 or
T1/E1 with the console interface and type:
1. SYS_NAME:> /CONFIG/FXS
2. SYS_NAME:/CONFIG/FXS> change pola off
IVR Modification by T1/E1/FXO Users
From version 1.2.00, the user has to create the voice prompts in
*.wav format on PC and convert the WAV files to *.axv format for
downloading to Max devices. The conversion software, vedit, is
provided with the software upgrade. Refer to the Max Command
Reference Guide Addendum for more detailed instructions on
modifying the IVR (Section 29, Voice Prompt Conversion Software).
