Step 7: If you want to record all the calls you make or receive, select the All numbers option. If you wish to record calls from the numbers that are not saved in your contacts, select the Unsaved numbers option. You can even choose some select numbers manually that you wish to record calls to and from by clicking the Selected numbers option, then tapping Auto record numbers, and then add the numbers that you desire by typing them manually or adding those numbers from your Recents or Contacts lists.
Hello, you have reached Dr. A. We are busy assisting patient on the another line. Please, leave your details, including the case number if applicable, name, and phone number. For a medical emergency, hang up and call 911.

If a phone rings once and then goes to voicemail or rings only briefly, it usually means either that your call is blocked or that the phone is not receiving calls at all. If the phone rings five times and then voicemail picks up, it's more likely that the person on the other end simply isn't picking up the call.
2. Access the dial pad. You'll need to bring up the Phone app's dial pad, as if you were going to call an actual person. To do this, tap the dial pad icon near the bottom of the screen.