Bangkok--Jan 19--Lucent Technologies In its boldest move yet to address high-growth opportunities in data networking, Lucent Technologies today announced that it has signed a definitive agreement to merge with Ascend Communications. Under terms of the agreement, which was approved by each company’s board of directors, each share of Ascend will be converted into 0.825 shares of Lucent. Based on yesterday’s Lucent stock closing price of $107-7/8, the transaction would be valued at about $20