You are not required to make work calls on your cell phone or other personal devices. However, RingCentral can be used on these devices if you wish.
In fact, you can use a tablet, laptop, or desktop computer to access RingCentral. It is that versatile!
The good news is if you set up your cell phone to accept work calls, users will see your UTHSC number, not your cell phone number.
And you can set your work hours. Once you are off work, so is RingCentral, so no after-hours calls!