This corded phone with speakerphone lets you have communications with others clearly, and displays incoming call number and so on through an LCD. And it supports an extension set.PHONEBOOK - The built-in phonebook can store up to several entries. When the phonebook memory is full, 100%' is displayed. Easy to store the numbers in this Geepas Telephone.CALLER ID AND VISUAL RING INDICATOR - The Caller ID allows you to see who is calling before you answer and to see who has called in your absence. If the number is stored in the phonebook, the caller's name will be shown on the easy-to-read display. This home phone features a flashing visual indicator light located on the bottom corner of the device when receiving an incoming call.AUTO REDIAL FEATURE - This will let you call the last number which you have contacted. Easy to call with just a single touch.IID KEY LOCK - It is highly safe to use in the office as it has highly secured with IID key lock once its locked with code its doesnt anyone to access it.