Has anyone found a way to stop 'No Caller ID' and 'Number Withheld' calls?
I've tried setting my iPhone to only accept calls from my address book contacts, but this doesn't stop these calls.
If you really only want calls that are in your contacts list and to exclude all others and depending on the phone you are using you can set a ringtone for all contacts and a silent ringtone for any others. Although this will not block the calls they will ring until your voicemail kicks in and marketing calls rarely leave a message.
