Hello Tomás, How are you? Well, it's very simple. I put together a homemade interface that relates a phone to FRFEDV's transmission system. Simply, the program he used on the phone is SY HI and with that program I speak in Spanish and it immediately translates into English or another. language in male or female you can choose the one you want, actually what comes out of the team is the translation, there is a small delay between the time it takes to translate but you are speaking in Spanish and it is translating English, for example, or Japanese. We gave it the name with our colleagues from Australia because they told me that the voice that comes out in English is the same as Winston Churchill. So we named it Winston. For that reason, but in reality the program is called SY HI ai, there are several, eh, it's not the only one. that exists but this is the one that I adopted and it works well. If any other information, it is completely homemade and artisanal and zero weight zero zero zero zero zero zero cost 73 !!! AND THANKS !!!