The bottom line is that a business’s situation is likely to change often and rapidly, each of which need a unique and applicable voicemail greeting to cover the circumstances and timeline. For example, callers shouldn’t reach a business-as-usual voicemail, and therefore expect a return call within the business day, if the subject they’re calling is out on vacation for two weeks. Such a lack of communication is a recipe to lose that caller’s trust and tarnish the brand’s reputation.
There is no need for a voicemail message to convey this, unless the therapist conveyed false expectations in the first place. I used to tune out those “call 911” messages.

Thank you for the tips! I will definitely use these when I record my voicemail greetings and messages when my customers are on hold using MightyCall. It’s very important to have effective greetings in order to maintain customers before the human to human interaction.
Speaking slowly, clearly, and rhythmically while recording your greeting shows a greater level of confidence an clarity. Try to avoid conversational cadences when recording your greeting. Hi, this is Doctor Claire Rourke with the New Haven Medical Group, and I am not available to take your call. If you're a new patient, leave me a message, but if you're an old patient, please dial the hospital. Thank you. Hi, this is Doctor Claire Rourke with the New Haven Medical Group. [Pause] I am not available to take your call right now. [Pause] If you're a new patient, leave me a message. [Pause] If you're an old patient, please dial the hospital. [Pause] Thank you.