IP Office R11.1 SP1 added support for a 911 View or Emergency View programmable button.
A button set to this function indicates to users on the same system when the IP Office has routed an emergency call out one of its external PSTN trunks.
The button gives a ring and flashes when there is a connected emergency call in progress.
The button remains lit when there are details of previous emergency calls in the IP Office system's emergency call history.
Pressing the button displays details of currently connected emergency calls (the first 10 such calls).
After pressing the button, the History option displays details of any previously connected emergency calls (the first 30 such calls) and allows deletion of those call details.
On J189 phones, the details include the location name if the IP Office used a Location record as part of the emergency call routing.
All users on the IP Office share the same emergency call history information. Changes to the emergency call history affect the details shown on all phones on the same system.