SBC Communications and the union representing 100,000 striking workers say intensified bargaining has led to some progress toward a new contract. About one-thousand of the striking workers are in Arkansas. Today is the final day of the scheduled four-day strike by the Communications Workers of America over health care and job security issues. The walkout is scheduled to end just after midnight. Differences still remain between the sides over how much the CWA workers would pay toward their medical costs -- and whether union workers could fill jobs in the company`s growth areas. Those areas are now staffed largely by contract employees.