A method, device, and system for creating a communication group among a plurality of mobile communication devices. The method includes creating a first trigger condition, at a first mobile communication device, the first trigger condition including detection of a second mobile communication device in an area. A context data message that includes the first trigger condition and the area definition is sent by the first mobile communication device to a communication beacon having a range that includes the area. When the first trigger condition occurs and when the first mobile communication device is outside the area, receive a group call at the first mobile communication device from the second mobile communication device.