Open Phone → Make sure you are on Keypad → Press and hold the number 1 for a few seconds. It will call your voicemail; You can check your voicemails here. 3. Force close and reopen the Phone app. To force close Phone, on iPhone X and later swipe up until you see the apps in task view, then swipe up again on Phone.
17. “Happy Holidays from [company name]. Our hours are a little bit different this holiday season. [List hours]. We hope it’s not an emergency, but if so, we’ve got you covered. Contact us at [company email/other support lines] and we’ll get back to you ASAP. For all other inquiries, we’ll contact you when we are back from the holiday – we might be a few pounds heavier but eager to speak with you! Happy Holidays.” Things happen during the holidays, we know. Let your callers know you are still there just in case!

Note that the secretary has asked for the reason for calling so she can prioritize the patients who need the most help. She’s also keeping it short and to the point.
Recording the message yourself doesn’t mean it can’t be done professionally. You can still get studio time with an experienced audio engineer. Studio time can cost $60-$100 per hour, which may or may not come with an engineer. If you need to hire one, their rates are usually $100-$300 an hour. Mind you, their feedback, professional experience, and editing capabilities are typically well worth the extra expense.