Att version. Seems that numbers that are not in my contacts does not ring and goes straight to Vm. Do I have something turned on I shouldn’t?
It could be the “Silence Unknown Callers” feature.
Check in your Settings.app, under Phone, there is a “Silence Unknown Callers” option. It might be on.
That feature automatically transfers calls to voicemail if they’re not coming from your contacts or numbers you recently called.