Some of the solutions to this error include setting up voicemail and resetting the network settings.
Imagine listening to a voicemail from a salesperson who is just so excited about the message that their tone is now unnaturally high-pitched and energetic. Today, people aren’t fooled by that, and in trying to make the message more meaningful, this approach actually makes it less meaningful.

Think through what you are going to say before you place the call. When men hear the beep, they often freeze up and forget what they wanted to say. If you want to be the go-to guy at work, then you have to exhibit competence on all levels. Don’t spoil your confident image by hemming and hawing and filling your messages with “uhhhhs,” and “ummmms.” If it’s a really important call, consider writing out what you want to say beforehand. If the person picks up, great, you now have some notes to remember what you wanted to talk about. If they don’t answer, you can leave a clear and concise message.
I believe honesty and creativity is the key. Understand that in order to increase your callbacks, you need to pique the prospect’s interest without raising doubts or fear.