Changing number of rings before voicemail picks up?

[frannie]

Hi, does anyone know if/how we can decrease the number of rings?   My new phone is currently at 6 rings, and I would prefer it to be at 3.

[DirkC]

Hi. I have twice followed the guidance here provided. The system gives a positive message, but the number of seconds before going to voicemail has not actually changed. A system error? Help please.