Systems and methods for push-to-talk wireless applications

Systems and methods are provided for routing data messages to appropriate applications among multiple available applications. Observers use a variety of signal transmission devices to generate and transmit data messages to a receiver. Each observer has an observer identification and each receiver has a receiver identification. A routing layer is configured to correlate the observer identification and the receiver identification. While multiple applications are available, the routing layer routes the data message to the appropriate application based on the correlated observer and receiver identifications. The router can further route the data message to an appropriate destination within the appropriate application based on the correlated observer and receiver identifications. The data message can also undergo additional signal processing before it is routed to a third party application.