Adult chat lines (phone sex) and tech support are a very common use of premium-rate numbers.
Other services include directory enquiries, weather forecasts, competitions and voting (especially relating to television shows).
Unlike a normal call, part of the call charge is paid to the service provider, thus enabling businesses to be funded via the calls.
In many cases people have placed video calls on both the internet and their cell phone.
Those who answered yes to both questions were only counted once in the overall tally of video callers.
Telephone companies typically offer blocking services to allow telephone customers to prevent access to these number ranges from their telephones.
In some jurisdictions, telephone companies are required by law to offer such blocking.