It is not widely known, but it is possible to run any of the Positron Asterisk embedded blades and appliances in high availability pairs of master and slave.

Very useful in scenarios where you need to recover quickly from a hardware failure.

The document below is specifically for the V114 embedded asterisk card, but applies equally to any of the products in the Positron range, including the appliances.

High Availability for Positron asterisk based pbx systems