How can I adjust number of Rings before it goes to Voicemail-Iphone 7
My phone takes a LONG time before it goes into voicemail and callers complain about how many rings it takes. I've googled this and read about doing the *61 Settings Interrogation thing. But it says my "Settings Interrogation...." are disabled. How can I enable them so that I can shorten the length of time the phone takes before going into voicemail? Thank you.