Similar to sharing your 24-hour response time on your own voicemail message, let contacts know if there’s a good time to reach you when requesting they call you back.
OpenPhone is a modern business phone service app for startups, small businesses, and individuals. OpenPhone separates your professional and personal communications and enables you to personalize your number to reflect your own brand. Use your business number directly from your existing cell phone!

To end the voicemail, state (or restate) your main question, then say your phone number. You can also say you’ll follow-up with an email. Now, this isn’t the same as saying, “If I don’t hear from you, you’ll hear from me!” Instead, it’s giving them another way to contact you, one they may be more comfortable with. They should still feel a responsibility to respond to your question, but now they have two options for how to get back in touch. (Then send that email, of course.)
Here’s the thing: no matter how perfectly-crafted your sales voicemail is, plenty of people are still going to ignore it or stop listening midway through. That’s actually okay, though. We already know that other types of messaging, like emails, get a higher response rate. But where voice messages win is in quality – when you do get a response, that means the person has a very high level of interest.