Patent ID: 8688168

Claim:
A system comprising: a mobile communications device including: a mobile unified communications integrated dialer (MUCID) client configured to communicate via Session Initiated Protocol (SIP) and to receive data services from a data network comprising a private branch exchange (PBX) network when connected to the data network, and a phone daemon configured to provide phone functionality via phone application programming interfaces (APIs) and receive cellular voice services directly from a wireless communications network; and a docking station configured to establish a connection between the mobile communications device and the data network, wherein the docking station is configured to transfer services from the data network to the mobile communications device when a connection is established between the mobile communications device and the data network, wherein: the mobile communications device is configured to operate in an enterprise mode and in a personal mode, in the enterprise mode: the mobile communications device handles calls using the MUCID client through the established connection with the data network and via the docking station; and the MUCID client includes a transparent two-stage dialer configured to establish a call between the mobile communications device and a called party when the mobile communications device is not docked on the docking station by dialing an enterprise access number to access the PBX network, in the personal mode, the mobile communications device handles calls using the phone daemon on the mobile communications device through the wireless communications network without using the data network via the docking station, and the MUCID client is further configured to use the phone daemon to provide phone functionality via the phone APIs in the enterprise mode.