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Block outgoing calls to the specified matched number(s).
If no Number is specified, all calls will be blocked.
If Info is checked, all diversions and blocks will be displayed after the action.
To stop blocking, use Call Revert.
Note: you can't block *and* divert a particular pattern.
Matching occurs in the same way as for event contexts, see the Event Edit Activity help page.
Examples:
0193* - any number starting with 0193
12345/56789 - either of the numbers 12345 or 56789