What business is China Unicom? Cancel the SMS mode of the service?

Unicom is in the letter, which is an information subscription and on-demand service of short message platform. Its business content is many, including: information, management, trading, entertainment and other services on demand and monthly subscription. \x0d\ Monthly subscription service can be cancelled by contacting customer service at the place of departure; On demand, pay per call, and then no charge if you don't use it. \x0d\ Cancellation of Unicom's monthly subscription service will not affect the use of other functions of the number. \x0d\ Don't block all short messages with code 106, otherwise it will affect people who can't receive short messages sent by any information station or received by banks.