You can use Enhanced Caller ID on iPhone devices if you installed the mobile app on your phone. The feature is enabled by default. To access the Enhanced Caller ID settings on an iPhone, do the following:
- Open the Tresta app on your iPhone.
- Tap the Account icon on the top left corner of the screen.
- Locate Enhanced Caller ID under the Caller ID heading.
From there you can toggle the Enhanced Caller ID feature on and off.