These start with stand-up phone booths, like the one shown in the image.
They are designed for short term use, so they are tall enough for people to stand in and make calls with the option of a stool for people to sit if they prefer. They will normally have a small table on which people can use to write notes, position a laptop or hold a cup of coffee.
Use – Quick confidential phone or video calls – up to 30 mins max.