EXHIBIT 4.2 CORPDAL:52067.3 22768-00001 VTEL CORPORATION INCENTIVE STOCK OPTION AGREEMENT VTEL CORPORATION, a Delaware corporation (the "Company"), hereby grants to Optionee this Incentive Stock Option to acquire ( ) Shares pursuant to the Plan, WHICH...Incentive Stock Option Agreement • June 4th, 1997 • Vtel Corp • Radio & tv broadcasting & communications equipment
