iPhone users should stop paying for visual voicemail with the big telcos Rogers, Telus, and Bell, as the free Live Voicemail feature from iOS 17 can save you money every month. This is a public service announcement to review your monthly cellphone bill and to leverage Apple’s free and better voicemail service that debuted in the fall.
If your phone is off or not connected to the network then carrier voicemail would take effect.
Unless you stop paying for the feature, as the OP is suggesting
I have carrier voicemail that’s included with my plan but stopped paying the extra $5 /mo for “visual voicemail”. I still have carrier voicemail but just have to dial in to listen to those messages.