Many such techniques are in use today: mail shots, circulars, catalogues, phone calls with or without human or automatic intervention, radio, video phone, fax, TV telesales - and more to come in the future with CD-ROM, modems providing link-ups between personal computers, and so on.
At Google I/O, the company's annual developer conference held in San Francisco last week, T.V. Raman, a research scientist at Google, demonstrated an adaptive, circular interface for phones that provides audio and tactile feedback.
Circular display aside, the phone itself looks pretty nice as well if you're into phones that make phone calls and do little else.
He had reached the circular road when his phone rang.
At the other end on the tech scale are locksmiths who paste circular stickers bearing their phone numbers on everything in sight.
After the power was restored, I called them, and after an hour-and-a-half of wandering their maze of user-unfriendly automated phone and circular Web menus, I got to an actual human in North America.
Users can email that circular to their mobile phones, and later walk into their local store, flash their phone and redeem the offers.
Circular banks of pay phones that dot stone floors are among the station's period details.
The circular, view-with-your-phone-in-any-orientation video format Snap pioneered also gives its Snapchat app something that its popular clone Instagram Stories can't copy.
Still, on Sept. 1, the Nguyens' dusty front porch in Westminster was littered with fliers, circulars and an old phone book.
