Some of our Vocera Smartphone user's asked if it would be possible to have an indication on the screen to indicate a call is on hold. They did not specify if it would be an icon in the bar with the battery  indicator or on the main screen.

Idea #1: On main screen    'Caller Name (HOLD)'  instead of just the callers name on the screen flashing.
OR
Idea #2: On title bar   HOLD - flashing to stand out instead of a static indication.