You might also consider giving them the option to skip your voicemail message completely by pressing another key (again, check with IT). You also want to make callers aware what you will return their call, instead of telling them that you will try to return their call--and let them know when you are likely to do it, if possible. If necessary, provide additional or emergency information in your voicemail greetings. My dentist, for example, lists his cell phone number for emergencies.
Solution: Make it easier for callers to reach a real person. For example, if you have multiple phone lines, Spectrum Business Voice offers you the option of setting up an auto-attendant that answers your business phone and provides callers with a menu of options—such as particular employees or departments. This way, callers are more likely to reach the people who can help them. A hunt group is another voicemail feature: If one employee does not answer their phone, it redirects calls to another phone line in your business and can keep trying all the lines you have. It will only direct calls to voicemail if no one answers their line.

46. Hello, you’ve reached [name], [job title] at [company]. I’m currently away from my desk or on another call. Please leave a detailed message so I can return your call as soon as I get back.
3. Line2 – Second Phone Number. Line2 allows you to text and call from a private number using Wi-Fi, 3G/4G. You can call and text the US and Canada without any international roaming charges.