We have a switchboard that is operated by three individuals using the attendent console application. Calls are routed using script and time of day. I'm looking to see if there is a way that if all operators were to leave for an emergency that a button can be depressed to indicate all AC users are busy/unavailable to reroute calls to an answering service.
You didn't mention the model of phone, the mode it's being used in [SIP, SPCP, or SCCP], or the call control being used so I'll assume you're asking about a SPA5xx IP phone in SIP mode: You could potentially program an XML speed dial to perform the task you're looking for.
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