A group of users can be created with a purpose of receiving voice announcements through the speaker of a telephone set, but it has to be in the waiting mode.
AltiGen iFusion SmartStation AP300 Black is an unusual gadget for Apple iPhone. It is a landline phone with the ability to connect your device to iPhone. The device has a wide range of functions, including the ability to act as a Bluetooth-Speaker for iPhone 3G, 3GS, 4 and 4S.