CREATE TABLE BlockRepetitiveCalls
(
    Extension VARCHAR(75) NOT NULL,
    Zone VARCHAR(75) DEFAULT NULL,
    DID VARCHAR(25) NOT NULL,
    ts BIGINT UNSIGNED NOT NULL,
    KEY ( ts ),
    PRIMARY KEY ( Extension,DID,ts )

) ENGINE=INNODB CHARSET=UTF8 COMMENT="Track calls, if a user calls the same number too many times,";
