There is only one version of firmware. The mode of operation (IPO, Aura, ACO, 3rd party) is determined by configuration parameters. The “3PCC” hardware cannot be configured to work on Aura/IPO. The non-3PCC hardware can be configured for all modes.
The firmware is the same. Whether it operates in CCMS mode (full features) or in basic SIP mode depends upon configuration parameters which it gets in the 46xxsettings.txt file.
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