For an idea of how over-the-phone interpreting works, we’ll use an example as if you want to communicate in English. When you encounter someone who does not speak English, first you call the ITC Hotline. You let the operator who answers know what language you need.
Then, in less than 16.5 seconds, you and your non-English speaking person are connected to a native linguist interpreter for that language! You can have your conversation together successfully with the help of the interpreter.