How do I keep an incoming phone call from interrupting a RINGR call? – RINGR

TURN ON DO NOT DISTURB

Activating the DO NOT DISTURB feature on your phone will keep your RINGR conversation going even if someone tries to call you in the middle of it
Be sure that your device is set to ALWAYS SILENCE CALLS and to ALLOW CALLS FROM NO ONE. Using the default settings will not protect against interruptions and could interfere with the RINGR call.

OR...

TURN ON AIRPLANE MODE

Then, ensure that “WI-FI” IS ALSO SWITCHED ON. This will allow you to record a RINGR conversation on a wireless network without worry of being interrupted by a cellular call. JUST BE SURE TO REMEMBER TO TURN AIRPLANE MODE “OFF” WHEN YOU'RE DONE.