EXHIBIT 11 ACTIVE VOICE CORPORATION COMPUTATION OF EARNINGS PER SHARE Three months ended June 30, ----------------------------- 1997 1996 ------------ ------------ PRIMARY Average shares outstanding 4,609,827 4,562,732 Net effect of dilutive stock options based on the treasury stock method using average market price 27,999 65,382 ------------ ------------ Total 4,637,826 4,628,114 ------------ ------------ ------------ ------------ Net income $455,000 $771,000 ------------ ------------ ------------ ------------ Per share amount $0.10 $0.17 ------------ ------------ ------------ ------------ FULLY DILUTED Average shares outstanding 4,609,827 4,562,732 Net effect of dilutive stock options based on the treasury stock method using the period end market price, if higher than average market price 28,858 65,428 ------------ ------------ Total 4,638,685 4,628,160 ------------ ------------ ------------ ------------ Net income $455,000 $771,000 ------------ ------------ ------------ ------------ Per share amount $0.10 $0.17 ------------ ------------ ------------ ------------ 16