You’ll also have the ability to add a PIN to your voicemail service for extra security. This is one thing that you can do right on your iPhone – just go into your iPhone’s Settings panel, and scroll down to find the settings for your Phone app.
You might also consider giving them the option to skip your voicemail message completely by pressing another key (again, check with IT). You also want to make callers aware what you will return their call, instead of telling them that you will try to return their call--and let them know when you are likely to do it, if possible. If necessary, provide additional or emergency information in your voicemail greetings. My dentist, for example, lists his cell phone number for emergencies.

Thanks for the explanation. It does indeed sound like there’s no convenient solution till your whole system gets revamped. To briefly explain *why* I don’t want your voicemail enabled: I use my USMobile number as a forwarding line for Google Voice. Google Voice’s voicemail is frankly superior to yours so I want to use it exclusively. When your voicemail kicks in it interferes with Google Voice’s operation, causing me frustration and a real mess. I’ll give some thought to whether I want to be bothered with going through a quarterly exercise of calling and re-disabling your voicemail.
Navigate to your Phone app located at the bottom of your iPhone home screen. Tap-open the Phone app. Once you have done that, you will see a voicemail logo the bottom right corner of the window that has opened, select that voicemail icon. That action will open the visual voicemail interface. At first, all you will see is a blank screen with a