An echocardiogram (also called an echo) is a type of ultrasound test that uses high-pitched sound waves that are sent through a device called a transducer.
Follow the above dialing format while making a call From Australia to United States. 1  0011 - Exit code for Australia, and is needed for making any international call from Australia. 2  1 - ISD Code or Country Code of United States. 3  Area code-There are 291 area codes in United States.
Follow the above dialing format while making a call From Australia to New Zealand. 1  0011 - Exit code for Australia, and is needed for making any international call from Australia. 2  64 - ISD Code or Country Code of New Zealand. 3  Area code-There are 75 area codes in New Zealand.