 The company was also quintessentially Israeli in how it was run , with Comverse CEO Ze 'ev Bregman in particular favoring a loose , relaxed system in which he knew all the employees and lines of management reporting were frequently bypassed . When Comverse Technology joined the S & P 500 index in 1999 , it was the first Israeli @-@ associated company ever to do so . It set the same mark when it joined the NASDAQ @-@ 100 index . 
