Rehearse your greeting a few times before you press record. Plan your pauses and select natural places to take a breath. If you are recording directly into your phone don't hold it to your ear like you are talking on the phone. This can produce a muffled tone. Hold the phone out in front of you a few inches from your mouth for the clearest recording. This may require some trial and error. So playback your greeting and make necessary adjustments on your re-record.
Your voicemail, which gets heard every single time someone doesn’t manage to reach you on the phone, is a prime opportunity to be marketing to your customers.

Don’t keep the same old voicemail greeting forever. Not just because it can get stale and boring, but because you’re missing out on the opportunity to let people know what you’re up to. If your business is having a sale, be sure to update your voicemail with that information. Or if you plan on being out of town for a few days, let people know that their phone calls will not be returned until the date that you return.
While there are a number of resources to help coach users in making a proficient voicemail greeting, some users still feel they are not doing enough. As such, there are a number of tools currently available to help even further. a. Professional Voice Recording: Now that you’re versed in the process of recording your greeting, you may feel a burdening sense of responsibility. As such, you may find that weight to be too heavy to lift alone. Well, rest easy. There are a number of companies and services for recording quality professional greetings.