This is a very unique intercom system. You pre-programme a phone number in it. When the outside station button is pressed your phone will ring differently & you will know someone is at your door. If you have the video system you would just go to the channel you set the intercom up on. You can forward your number to your cell phone & even when you're not at home, the visitor will think you are at home.
AIPHONE carries an extensive line of intercoms. They have intercoms to meet your needs. They have intercoms with tilt camera as well it can be integrated with music. The combinations are endless with AIPHONE.