The product on this page comes with a 13 months **from the date of purchase regardless of brand new or used products. Only the parent unit without the intercom All instructions are included except for the extension console and extension phone chargers. Since it is only the parent unit without a child console, the phone book function (transfers from the extension unit) cannot be used. The following registration functions can be used on the parent unit. It can be used immediately after registering the other part you frequently used; One-touch dial function allows you to register 3 buttons on 1, 2, and 3. Equipped with a "annoying prevention" function that sends a warning message to the other recipient before the call ring ring sounds can display abundant call history (date and time only); Register up to 300 phone numbers; Approx. 4.7-inch large screen LCD, fax prevention and convenient features (Features/Decision) button is placed on the top of the multi-function key. Improved panel maneuverability. Before the call sounds the unit will answer and send a message to the opponent to record calls. Annoying call prevention: Set "annoying prevention*" to answer the call before the call sounds and send a message to the opponent to record calls. During incoming calls, alternate between the call and the alert announcements, and automatically record the call content when you answer the call. By using an SD card (sold separately) you can increase the recording time and number of recordings. It also has a "junk call consultation" function that allows you to play and listen to the other party while you are talking with a third party. *If you use the number display service, the anti-bothering function will only work when it comes from someone who is not registered in the parent phone book. You can send a message to leave the name first for the recipients name. When you dont know whoever you are, you can see it before you leave. When you do not answer a call, you can send a message to hang up the call. The parent receiver is cordless, so it is easy to take and take it off. The parent receiver is cordless, so you can easily change it from a distant room. It can be used near the parent unit, as a traditional handset, or in a location far away from the parent unit, it can be used like a handset.