What happens here is when you apologize and sound genuine in your tone, your prospects would understand and leave their contact details for you to follow with them.
“Hi, this is [name]. I’m either on another call or am away from my desk. Please leave your name, contact details, number and your reason for reaching out and I will get back to you as soon as possible. Thank you for calling.”

No matter what you call it, this is what callers hear when you don’t answer your phone. Or should I say, it’s what callers are forced to listen to even though they don’t want to. Your voicemail greeting is an overlooked marketing opportunity if all you’re using it for is to give …
A secretary in a doctor’s office creates a voicemail greeting that says, “If you have a scheduled meeting with us, we could use copies of all your medical documents from last year, so come prepared.” Using the word “could” gives patients the impression that they don’t necessarily “need” last year’s documents. See the difference between “could” and “need”? Your word choice can impact a future meeting significantly. If you want a customer to perform a specific action, you need to pay close attention to how you express your calls-to-action.