On the other hand, a stellar professional voicemail is more than just a way to ensure callers are heard. It’s actually a gateway to encourage recruiters, clients, connections, venders, and other callers to continue forward with the first step in developing a business relationship, which is them making contact. The power of the right voicemail greeting is the caller actually staying on the line to leave that contact information or gain access to an alternative contact point.
38. You’ve reached [your name] at [your company]. I’m sorry, but I’m temporarily unavailable. Please leave your name and number, and I’ll return your call as soon as possible.

It’s a good practice for each of your team members to have their own personal business phone numbers. There are many reasons why they shouldn’t use their personal cell phone number for business, so you’ll want to give them their own phone number through your VoIP provider or phone system.
If your smartphone processes the bulk of your daily business, where high profile clients interact with your voicemail, then you must present a professional image with clear instruction. This is why professionally produced voicemail greetings are not only useful, but necessary for the mobile office.