The Panasonic KX-TG9542B DECT 6.0 Plus 2-Line Link2Cell Bluetooth Enabled Answering System with base keypad and 2 cordless mobile phones, allows you to connect to 4 cell phones. With 2-line procedure, this expandable system supports 3 simultaneous conversations, 2 on the landlines and 1 on the cell. The Text Message Alert function informs you of received sms message on your cellular phone via an alert on your cordless mobile phone when your cell phone is synced to the base device. Delight in two responding to systems so you can separate your job life from your home life. Currently you can be alerted to taped messages whether you're at house or when traveling. When a customer records a message, the base unit will beep, informing those in the house. Not in your home? The phone will instantly send out a message to a registered cell or workplace phone together with playback alternatives.