AT&T and Panasonic both make excellent multi line cordless phones. The AT&T LT88102 may be just what you're looking for. It has a great set of features for a relatively low price.
Staples, Target, Walmart, Best Buy, Kmart, Sam's Club, Office Depot, and RadioShack all sell multi line cordless phones for reasonably modest prices.
I have had multi-line cordless phones in many of my houses. Never a huge hassle to install, and it's always nice to have cordless phones. I would highly recommend purchasing one if you are on the fence about it.
One can purchase 4-Line Cordless Phone online from retailers such as Amazon. Once on the page, type "4-line cordless phone" into the search field at the top of the page and press enter to bring up the phones.
Cordless phone amplifies signals to and from phone-line interface, user controls and speaker phone. It broadcasts and receives radio signals to and from the handset.
There are many 2-line cordless phone systems. AT&T and Panasonic sell these phone systems at retail stores such as Walmart. Walmart sells many of these systems in their stores.
Nothing except the cordless phone's handset isn't permanently attached to the base.
The Ace 2 Line Phone Adapter is a good multi line phone adapter. anonymous@oola.com
Cordless phones use radio frequencies to send the messages from a base, which is attached to the phone line, through the air to the cordless handset. Newer cordless phones receive their signals digitally.
There are several benefits to having a multi line phone system. These benefits the ability to connect additional lines to every phone and the call waiting feature.
There are many benefits of a multi-line phone like more than one person being on the phone at once, being able to send phone calls to the other line(s) and being able to have a different personal voice message for each line.
It probably means a more up-to-date cell phone or land line phone. This means you don't carry it around as a giant bag and it is cordless.
The both make calls, both can have voicemail, call forwarding, and some other features. If you have a cordless land line phone, then they are both cordless.