Vtech Corded/Cordless Connect to Cell Phone Answering System with Caller ID - DS6641 MAKE BOTH LANDLINE & CELL PHONE CALLS: Because of the special blue tooth technology you can make both landline and cell phone calls with this system. This is a revoltionary phone system that beats out the typical old phone systems POWER CONSERVATION TECHNOLOGY: If you want to save energy or battery amount then you can switch to the special power conservation mode. This setting saves your phones energy and you money on your electricity bill. EXPAND UP TO 5 PHONE HANDSETS: We have created a special phone system that allows up to 5 phone handsets to be connected with the use of only one phone jack! So now you can add more people to your office conference calls in a snap. CORDLESS & CORDED COMBO: This phone handset system is also unique because it provides you with both a corded and cordless phone option. So if you want to take your call on the go or while seated at a desk in a stationary way you can do so with our product. DIGITAL RECORDING & ANSWERING SYSTEM: This phone system features up to 14 minutes of recording and state of the art answering system that saves the complete information of the caller, date and time.