Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.
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.

Generally, people that call and leave messages are more likely to be ideal customers of your business. Your voicemail message is often not much more than a formality to the person calling.
In today’s digital-first world, it can be extremely easy to treat things like your business voicemail as an afterthought. Your voicemail has the potential to communicate so much more effectively than its digital counterpart.