Avoid units that integrate an answering machine and a phone into a single component. If you have difficulty with one of the two, you will be unable to use the other until the problem has been resolved.

If you often find yourself trying to decipher incoming messages, purchase a machine with variable speed playback. This can reduce the bother of listening to long-winded callers and aid in deciphering messages from fast-talkers.

If you are looking to replace your existing answering machine, some manufacturers offer special replacement pricing if you can show proof of ownership (either by sending the receipt or the machine to be replaced). Others offer refurbished units; be sure to check the warranty information before choosing this replacement option.

Voice mail services provided by local telephone companies may be a viable alternative to answering machines. These services provide multiple mailboxes for as little as $15 per month.

High-end digital answering systems offer voice mailboxes and other simple voice mail features at a fraction of the cost of voice mail service bureaus or low-end voice mail systems.