On the Iran-Turkey border a man sells a service that helps Iranians outside their country keep in touch with loved ones inside. His secret is two phones - one connected to the Iranian phone network and one to the Turkish. It's necessary because international calls into Iran are blocked. Customers outside Iran call his Turkish phone on WhatsApp and he then dials their loved ones on his Iranian mobile. He holds the two together so people desperate to hear from their families inside Iran can speak to them. As he's on the border, the man can connect to both the Turkish and Iranian mobile networks at the same time. It is one of the ways Iranians are circumventing the blocks on internet and phone connections authorities have put in place during the war with the US and Israel - but these services are expensive and patchy. Calling abroad rarely works the first time and calls usually last two or three minutes before cutting out.…