A method for initiating a service including initiating a communication to a destination according to an address of the destination; detecting the address during initiating of the communication; determining whether the detected address is associated with a trigger function; and triggering a request for the service when the detected address is associated with a trigger function. The gases can be added together, sequentially or alternately. The method may also include determining a protection threshold voltage range outside of the normal operating voltage range and within the safe operating voltage range of the MR sensor.