When a Blueworx Voice Response client fails or is taken offline, the associated SS7 Server that is managing its circuits passes responsibility and control to another Blueworx Voice Response client. As a Blueworx Voice Response client that is taking over the circuits of another client cannot perform call control on these circuits (the voice bearers are not physically connected to it), it can only take the circuits out of service in a controlled manner, and thereby ensure no further calls are taken by these circuits.
When the original Blueworx Voice Response client comes back online, it takes back the reassigned circuits from the other Blueworx Voice Response clients. The Blueworx Voice Response System Monitor reports alarm messages when it is given control of another client's circuits, and again when it releases these circuits.
The ss7view –circuit command shows this changeover. It replaces with A the – character for the CICs of other Blueworx Voice Response systems, when this client is requested to take over.