“Good afternoon. You have reached the office of [your name]. I will be out of the office beginning on [date] and will be returning on [date]. Please leave a brief message with your contact information, and I’ll be sure to get back to you as soon as I return on [date]. If this is an emergency or you need to speak with someone before I return, please contact [name of colleague/supervisor], [their job title], at [their phone number].”
– Thanks for calling. This is (name). Today is a Friday and I am working from our corporate office. If you need to reach me immediately, please call (number). Otherwise, please leave me a message and I’ll return your call as soon as possible.

Caller ID and missed call alerts now serve as their own form of call messaging. People can see who called. They assume they need to contact you. It’s much faster to scroll through a list of incoming callers than to listen to recorded messages. Some people even use audio-to-text transcription options in their cars or from their mobile phones that turn voice messages into notes.
You talk. I'm sorry I didn't answer your call. I want to be the reason you look at your phone and smile. Zedge have thousands of ringtones for your cell phone. He could record the following: Hi! This is John Smith.