Systems and methods are provided for configuring interface devices of a portable communication system. One interface device is configured as a primary device and the other interface devices are configured as secondary devices. The primary device can be used to facilitate communication between portable devices of the portable communication system and/or to facilitate communication between a portable device and a remote communication center. An interface device can receive priority factor information about an interface device operating as a primary device via a beacon signal. The received priority factor information is then compared to the interface device's own priority factor information to determine which interface device should be the primary device. The process of determining a primary device from two interface devices can be repeated, as needed, to have one interface device designated as the primary device and the remaining interface devices designated as secondary devices.