Exhibit 11.1 VIALOG Corporation Calculation of Shares Used in Determining Loss Per Share For the Years Ended December 31, 1996, 1997 and 1998 Year Ended December 31, --------------------------------------- 1996 1997 1998 ---------- ---------- ---------- Basic Loss Per Share - -------------------- Weighted average number of common shares outstanding 2,088,146 2,889,005 3,632,311 ========== ========== ========== Year Ended December 31, --------------------------------------- 1996 1997 1998 ---------- ---------- ---------- Diluted Loss Per Share - ---------------------- Weighted average number of common shares outstanding 2,088,146 2,889,005 3,632,311 Common stock equivalents - - - ---------- ---------- ---------- Total 2,088,146 2,889,005 3,632,311 ========== ========== ==========