Business voicemail greetings are rarely thought of as a prime way to connect with customers. But just because you're not available doesn't mean you can't make a positive impression on your customers when they reach your voicemail box.
iPhone users have another option: You can send a voice message from Apple's Messages by tapping the microphone button inside the text box (this works only when you're messaging other iPhones). By default, these voice messages last for only two minutes before they are deleted, but you can change that. Either tap Keep under any sent voice message or go to Settings > Messages and tap Expire under Audio Messages. You can set the expiration date to Never, but this affects only your record of the conversation, not the recipient's.

Let’s say you wanted to call someone and make an inquiry and that person doesn’t pick up their phone. To pick up the phone is to answer the phone. It’s a phrasal verb.
Alternatively, you could try disabling call forwarding, though your particular carrier or phone model may not allow it: