Symptom
Poly phone only rings once on an incoming phone call.
Applies To
Poly VVX Phones
Resolution
Check if the ringtone is set to Ring Splash.
Press Home.
Select Settings.
Select Basic.
Select Ring Type.
Set the Ring Type.
Ring Splash is the only Ring Type that only plays once, so select any other tone.
Cause
Ring Splash is designed to ring only once while a call is inbound. Changing the Ring Type will ring during the duration of the call.