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This API is available on Firefox OS for internal applications only.
Summary
The oniccinfochange property specifies an event listener to receive iccinfochange events. These events occur whenever the MozMobileConnection.iccInfo object changes.
Note: MozMobileConnection inherits from the EventTarget interface, so it's also possible to listen for events by using the addEventListener() method.
Syntax
navigator.mozMobileConnection.oniccinfochange = funcRef;
Where funcRef is a function to be called when the iccinfochange event occurs.
Specification
Not part of any specification.