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What is Unicom in the letter?

"Unicom in the letter" is an information subscription and on-demand service based on short message platform, which can be used by Unicom mobile phone users. "Unicom in the letter" allows Unicom mobile phone users to enjoy life, information, business, entertainment and other information anytime and anywhere through SMS.

There are different ways to unsubscribe from Unicom's letter service in different cities. For example, Beijing Unicom can send "" or "" to the designated SP code to cancel Unicom's letter service, or call 11 customer service hotline to cancel it. For details, you can contact the local Unicom customer service for information, subject to local policies.