That’s the simple structure of a voicemail greeting. Overall, your greeting should be professional, but the wording can vary depending on the situation. Check out a sample below.
While email and text support saw an increase in recent years, many customers, partners, and potential hires still prefer to call your company directly. When writing your voicemail script, include basic information such as a short greeting, your company name, an invitation to leave a short message, and the time frame in which the caller can expect a return call. If relevant, you may want to include your office hours, extensions for company departments, and the contact information for your office manager or HR department.

Context does matter here. If the caller would reasonably expect you to answer the phone (such as if they were calling a store or other place of business), an apology for not being able to get to the phone makes the most sense.
More scenarios and scripts. Smith suggests the following sample messages for other typical voice mail messages a veterinarian or veterinary practice team member might need to leave. If you’re calling to see how a pet is doing after a recent medical encounter/treatment: Voice mail – “Ms. Smith, this is Dr. Vet just checking in on Fluffy