In all there is plenty to consider when you’re recording an answering machine greeting. If you’re aiming toward a more secure home, you can use a very basic message. If you are really funny, and friends and family mostly use the phone line, maybe funny is the best way to go. For businesses, stick with the bare facts that give enough information to callers about when their call is likely to be returned or when they should call again. Tricia Christensen
Using an on-site PBX means you own the hardware of your phone system. You can modify the system to you exacting specifications, including changing phone numbers and adding extensions as necessary. You will also be in charge of ensuring the security of your data stores such as phone number listings and voicemail recordings.

If you’re recording your voicemail greeting during a busy time of the day and there’s a ton of background noise, there’s a chance it might interfere with the call-to-action you want your customer to perform. If you’re not speaking directly into the phone and your voice is breaking up, put the phone closer to your mouth, speak slowly, and read from a script if necessary.
Before the digital era, he says more than 80 percent of business lines had voice mail. Now, he estimates only a third of office phones have it.”For customers, even the most professional voicemail greeting is impersonal, and may even harm customer experience (millennials, in particular, avoid using voicemail altogether).