You need to have scripts before people start calling you. You need 3 types of scripts in your practice. The “I’m on the phone with a potential client and another new client call comes in” Script. The Voicemail Script. The “Booking the Client” Script. A script is essential in improving confidence when dealing with new clients.
You don’t have to spell out every single thing that you think they might want to know. Have some faith that your callers will be able to figure things out on their own. Be natural but informative.

If you leave me a message that includes your name, telephone number and reason for calling, I will return your call when I get back. You have reached Jim Smith. I will be out of the office until Feb. 14. If you would like to leave a message after the tone, I will call you back when I return.
Humor also leaves a lot of room for misinterpretation—which subsequently weakens sincerity and authority. A caller can be very turned off by merely misinterpreting your joke. Why take this risk? Additionally, this could even cause callers to question your character. Say, for example, the president of a company’s mobile phone voicemail greeting was funny. What’s to happen if the caller didn’t like or get the joke? What if they found it offensive? Another scenario is that a caller is reaching out to you for the first time—i.e. they have no idea regarding your personality. What next? The point is, with this type of greeting, humor is bound to be more divisive so just avoid it altogether. c. Poorly Pacing Your Message and Bad Time Management: Don’t speed through your message. Speak clearly so callers know what to include in their message and when to leave the message. At the same time, don’t drag your message out. No one wants to sit through a diatribe. Just get to the point clearly.