A system and a method for managing an incoming call are provided. The system includes a first mobile device wirelessly connected to a first answering module and a second mobile device wirelessly connected to a second answering module. The first mobile device and the second mobile device communicate with a telephone system. An authentication matrix for grouping the first and second answering modules into a same group is stored in both the first and the second answering modules. When the first mobile device receives an incoming call through the telephone system, the second answering module selectively takes over to communicate with the incoming call.