UMTS RIL extension

A method of communicating between a module and a radio comprising:

• generating a radio interface layer (RIL) API call at one of a plurality of modules to perform a UMTS-related function;
• sending the RIL API call to a proxy at a first interface;
• at the proxy, converting the RIL API call to a command understood by a radio driver;
• transmitting the radio driver command from the proxy to the radio driver at a second interface;
• transmitting a radio command from the radio driver to the radio at a third interface;
• and
• performing the UMTS-related function at the radio.

A radio interface layer (RIL) of a telephone for facilitating communications between an application program module and a radio, comprising:

• a proxy layer for communicating with the application program module at a first interface;
• and
• a driver layer at a second interface,
• wherein the proxy layer provides an API on the first interface for receiving application program calls to perform a UMTS-related function and wherein the proxy layer transforms the API calls to an input/output control (IOCTL) code and sends the IOCTL code to the driver layer at the second interface, and
• wherein the driver layer communicates with the proxy layer at the second interface and the radio at a third interface, the driver layer receiving an IOCTL code at the second interface and transforming the IOCTL code into a command understood by the radio to perform the UMTS-related function and sending the command at the third interface.