Now, “Hello” is a great way to begin a greeting, but it does not a greeting make. If your business is answering the phone with “Hello” alone, call a company meeting pronto and nix that nuttiness. In fact, a plain “Hello” can be confusing to callers, and it’s likely to make them question whether they’ve dialed the correct number.
With German-engineered sound design, the new Snom series is designed to provide the small business market with the best sound quality and make it easier to add new people and integrate employees who use their mobile phone more than their desk phone. The new platform can start with just 2 lines and 2 phones, then easily grow up to 100 lines and up to 300 cordless, desk phones, and smartphone mobile users. And it’s your choice to have your phone services hosted in the cloud or installed to traditional landline phone lines in your closet — whatever makes the best financial sense for your organization right now.

There is no definitive answer here, but you should include one of the two at the beginning of your message based on what makes the most sense.
2. Company Wide Voicemail Greeting. You want to be a little more formal when you're recording a business voicemail greeting for your company. State your business name, your hours of operation, the manner in which you'll reach out to the caller, and a place where he or she can obtain more information about your business.