Greetings,
Using an iPhone 8 Plus (iOS 16.7.7). *#61# doesn’t display voicemail access number (but it seems to be my phone number) and every parameter listed is shown as “disabled”.
Let’s say my phone number is: (123) 456-7890. *61*1234567890*11*30# results in displaying: ”Error performing request Unknown error”, “Setting Activation Failed Voice Call Forwarding When Unanswered”.
Troubleshooting done:
- iOS is up to date
- Network settings were reset
- Settings > Phone > Call Forwarding is disabled
- Settings > Cellular > Cellular Data Options > Voice and Data is set to highest “G” network (3G)
- Settings > General > Date & Time is set to the correct time zone
- iPhone was rebooted
- iMessages were turned off then phone shut down and turned back on
- No other SIM card to test with
- Voicemail and calls works fine.
Q1. Why can’t I edit the ringing time with the code *61*1234567890*11*30# ?
As I finished writing this post, I tried typing *#61# once more and it now shows that “Voice call forwarding when unanswered” is enabled, but with a phone number which isn’t mine.
Q2. How the “Voice Call Forwarding When Unanswered” (parameter listed via *#61#) got enabled while typing a message on this forum? (Settings > Phone Call Forwarding is still disabled)?
Q3. How can I change the “Voice Call Forwarding When Unanswered” to my phone number? (As *61*1234567890# displays “Error performing request Network Failure”. Typing #61# displays “Setting Deactivation Succeeded Voice Call Forwarding When Unanswered”, but typing *#61# right after still shows that phone number which isn’t mine for “Voice Call Forwarding When Unanswered”).
Thanks in advance,
Best regards,
Mike