When it comes to shopping, people have a number of concepts such as direct shopping, online shopping. But have you ever heard of the concept of “phone call” shopping? For a week now, with the people of the Old Quarter, this type of shopping is gradually becoming familiar. This is exactly that kind of shopping. Homemade signs made from all kinds of materials and sizes... have been hung by people in Cau Go and Hang Be streets on disease control posts at the top of the street. People who come to buy necessities do not need to go inside, just make a phone call and the seller will bring the goods to the checkpoint. The market area is located on a section of Cau Go street, Hang Be street, and Trung Yen lane and sells all kinds of foods, most of which are essential ones. The main gate to the market is located on the top of Hang Be Street, where there are always local authorities on duty. People entering and exiting the market must be local, and each time they enter the market, they must present their identity card, clearly state the reason, and have their temperature checked./.