I know how to change the number of rings before an iPhone goes to voicemail. I want to know how to change the number of rings when the phone has voicemail disabled. The interrogation codes don't seem to work with voicemail disabled.
What a great question. The interrogation code that will change the number of rings before going to voicemail is for call forwarding. Whether the call would be sent to voicemail or being forwarded to another line, you can set the length of time for the device to ring until the call is redirected. Without that, it can not be changed.
Have a great week!
James, AT&T Community Specialist
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