Users often don’t invest enough time into their messages, resulting in incomplete, unprofessional, or otherwise under-whelming greetings. Sure, crafting a greeting doesn’t sound all that complicated; however, there are a number of pitfalls users can fall into—i.e. informality, terseness, sincerity, lack of direction, and more. While none of these sound too catastrophic, they are often interrelated. As such, they tend to worsen any problem. For example, humor can cause informality, worsen ambiguity, and weaken sincerity. That being said, users should strive to avoid ALL these pitfalls.
7. "Hello, this is [your name] at [company]. Thanks for calling. Please leave your name, number, and the reason you'd like to chat, and I'll get back to you ASAP."

According to Gartner Research, more than two-thirds of companies compete for business today primarily based on customer experience – up from only one-third back in 2010. Knowing this, it should not surprise you that customer-centric companies are 60% more profitable than companies that are not.
Remember, your message is a reflection of you. Keep it short, professional and ALWAYS return messages.