Patent attributes
Techniques for passing, releasing, and/or transferring control of a call origination from an application dialer to a native dialer of a mobile communication device include determining whether or not a destination telephone number indicated at a user interface of the device is included in a set of predetermined numbers, which may include a set of service numbers for, e.g., emergency services, directory assistance, community services and information, etc., and/or which may include other predetermined numbers. Call control may be released to the native dialer when the indicated, destination telephone number is included in the set. Otherwise, the call may be processed by the application dialer, and may be routed from the mobile device towards the destination telephone number by using a private packet backbone network exchange. The application dialer may be a default dialer, and a user of the device may be unaware of the native dialer.
