Shanghai Unicom has launched a Short Message Treasure service targeting CDMA users to help them filter unwanted short messages.

Through a simple setting, CDMA users can easily screen unwanted messages from their mobile phones. There are three ways of setting the mobile phones in order to prevent those unwanted messages. Users can define either a whitelist, a blacklist, or they can set both. By doing so, they can only receive messages sent by people on the whitelist and refuse messages sent by people in the blacklist.

Users can also use a keyword to filter and refuse other unwanted short messages. The fee for this Short Message Treasure is CNY5 per month.

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