User manual

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When "Identification of Unknown Numbers" is enabled, you can
accurately identify unknown numbers from incoming calls, call history
and messages and then mark them as fraud or harassment, etc. When
disabled, unknown numbers can only be identified using the local phone
number database.
Messages
Send and Receive SMS
Start Conversation
You can talk to one or more than one contact in "Messages".
 Go to "Messages", click at the top right corner.
 Enter recipient number directly, or click at the right side of the
input field to select contacts from "Calls" "Groups" and "Contacts".
You can add multiple contacts at one time.
 Enter SMS Messages at the bottom of the screen, and then click
to send the messages.