Checks the caller ID of a call against the local number blacklist in the Asterisk database (AstDB).

        
          LookupBlacklist([options])
        
      

Searches for the caller ID number (or name) of the active channel in the blacklist family of the AstDB.des aktiven Channels in der AstDB in der Familie blacklist. If the option j is given, the number exists in the AstDB and the priority n+101 exists, the channel is handed to that priority. If no caller ID is available, the application does nothing.

Sets the channel variable LOOKUPBLSTATUS to FOUND or NOTFOUND.

To add numbers to the blacklist from the CLI, enter database put blacklist "number" "1"; similarly database del blacklist "number" to delete the entry and database show blacklist for a listing of all the entries in the database.

; Block calls from numbers in the blacklist,
; otherwise dial the number in the variable ${PETER}:
exten => 123,1,Answer()
exten => 123,n,LookupBlacklist()
exten => 123,n,GotoIf($["${LOOKUPBLSTATUS}" = "FOUND"]?black,1)
exten => 123,n,Dial(${PETER},30)

exten => black,1,Playback(tt-allbusy)
exten => black,n,Hangup()

You can accomplish the same effect as LookupBlacklist() with the following dialplan entries:

exten => 123,1,Macro(blacklist,${CALLERID(num)})
exten => 123,n,Dial(IAX2/user:secret@widgets.biz/500)

[macro-blacklist]
; Aufruf: Macro(blacklist,${CALLERID(num)})
exten => s,1,GotoIf(${DB_EXISTS(blacklist/${ARG1})}?black)
exten => s,10(black),NoOp(${ARG1} is in the blacklist)
exten => s,n,Busy(5)
exten => s,n,Hangup()