"John, this is Mark from Pinnacle. I've been working with Steve at JKY industries and It's urgent that I talk to you. You can reach me at 123 (pause 2 seconds) 456 (pause 1-2 second) 7890. That number again is 123.....456.....7890." Hangup.
If, on the other hand, your clients work with a number of team members, you might consider hiring a voiceover professional to record your greeting. While a recording with a voice actor is an extra expense, the result often outweighs the cost.

2. Voxist. Voxist is one of the great visual voicemail that allows users to manage voicemails conveniently and smoothly, anywhere they go, and also let them read transcribed voicemail messages.
“So I start by talking as if I answered the phone, like: ‘Hello? It’s Tom, is anyone there?’” Fulton eagerly explained, unaware that no one would ever stay on the line long enough to hear the voicemail he spent his entire Sunday crafting. “But that’s the joke — it’s just a message! Whoever is calling will be talking to no one,” Fulton added, failing to recognize that he was actually talking to no one since his message would never be played back by anyone under any circumstances.