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.
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.

Well done on recording your new professional voicemail greeting with script! Remember that you can update it again in a few months time. I recommend you open your online diary, choose a date 4 months from now and type in – Update Voicemail Greeting with Speech Active’s Video. Your listening skills and pronunciation will be even better than they are now. Especially if you continue your improvement with one of our tailored online English Pronunciation & Fluency Courses.
We actually know a top insurance sales guy who did a sales motivational message every day just like this, and people used to call just to listen to his thoughts.