88 Model 57i CT IP Phone User GuideLine Keys and Softkeys Flash KeyYou can set a softkey to generate a flash event when it is pressed on the 57i CT or 57iCT handset. You do this by setting the softkey to "flash". The IP phone generatesflash events only when a call is connected and there is an active RTP stream (forexample, when the call is not on hold).Setting a Flash Key1. Click on Operation->Softkeys and XML.2. Click on the Bottom tab or the Top tab.3. Select from "Key 1" through "Key 20" on the bottom tab.orSelect from "Key 1" through "Key 10" on the top tab.4. In the "Type" field, select "Flash".5. In the "Label" field, enter a label to display on the phone for the softkey.6. Click to save your changes.Aastra Web UI
