How can I change the # of rings on Voicemail

Contact your carrier. That is a setting they control.

heywood161 wrote:

How can I change the # of rings on my IPhone Voicemail

There is no settings to change that, it is handle by your cell phone provider.

You don't - at least not on the phone itself.

This is largely controlled by your cell service provider. They may or may not have any control over this.