Education Details: Users and departments can customize their extensions with their choice of music, messages, and voicemail greetings. Keep your callers on the line with professionally recorded messages on hold. Keep callers engaged by answering frequently asked questions, such as business hours, locations, or directions.
If you’re not going to apologize or sound regretful about it, chances are you will lose on potential prospects. Mean it to your prospects how you are really sorry you can’t assist them at the moment.

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.
Recognize Their Need. When someone calls your business, the voicemail should give them a sense of validation. This means that your voicemail should extend gratitude for their interest in your business, or an apology for not being there to answer your call. These two simple courtesies can go a long way in the creation or establishment of client/business trust. Make it Informative for the Caller. Your voicemail must include all the information the customer will need for your particular business. For instance, if you’re a brick and mortar establishment, it’s wise to include your store hours. It’s also a good idea to leave them an alternate way to contact you, especially if it’s after hours. After all, you don’t want to miss just one potential customer. Here are some suggestions for elements to include in your voicemail: Business name Hours (if brick and mortar) Alternate method of contact, such as email Your name