A busy greeting should tell callers that your phone lines are currently in use. You can direct people to wait on hold or leave a message. For example, “Hello, you’ve reached [company name]. Our representatives are currently helping other customers. Please stay on the line to speak with the next available team member, or press one to leave a message and we’ll call you back.”
Sound quality is another factor to consider when it comes to getting the best answering machine. If you go into a store and listen to various models, you can get a pretty good idea about which machines sound best from the owner's end. When it comes to which answering machines sound best to callers, however, you might have to do a little more research. Think about answering machines that you have called and that have a clear, crisp sound. If you have friends or colleagues who use answering machines that you like, find out which kinds they use.

When you’re recording an answering machine greeting for your home, or a voicemail greeting, some people like to keep it funny and light. They may record a message together, have one of their young children record, play silly music in the background or create some kind of a joke. While it’s fine to be funny, especially on a home recording, you should probably avoid being crude, particularly if you think children may be calling your home. Telemarketers may use any information given in an answering machine greeting.
4. Hi, this is [your name]. I’m unable to take your call right now but leave your name and number, and I’ll get back to you as soon as possible.