Website: https://www.americanvoicemail.com/articles/10-must-haves-of-professional-voicemail-for-real-estate/
Explain Your Return Call Policy: In your after hours message for the medical office, be sure to state your return call policy for voicemail response. By giving callers an estimate of when they can expect a return call from someone in your office, you can eliminate multiple phone calls from the caller, as well as reduce work for your staff members.

4. Greetings, you have reached the Sixth Sense Detective Agency. We know who you are and what you want, so at the sound of the tone, please hang up.
Twilio is a low-cost cloud service that provides APIs that add communication services to applications. We bought our phone number, which costs $1.00 per month, even if we don’t use for any calls or messages. Twilio charges $0.085 a minute for incoming calls and $0.013 a minute for outgoing calls. Sending or receiving a text message from our Twilio number costs $0.0075, while recording a voicemail is only $0.0025. Even if we receive 100 messages a month, the cost of those, plus the phone number, is only two or three dollars. To increase the security of this task, it might be a good idea to consider a proxy server from companies similar to fineproxy. The last thing you’d want is to get hacked! But I digress.