0000912057-00-005464 SC 13G 1 20000211 ACTIVE VOICE CORP 0000869554 3661 911235111 WA 0331 SC 13G 34 005-43689 533680 2901 THIRD AVE STE 500 SEATTLE WA 98121-9800 2064414700 2901 THIRD AVE SUITE 500 SEATTLE WA 98121 GRECO ROBERT C 0000937434 SC 13G 2901 THIRD AVENUE STE 500 SEATTLE WA 98121 2064414700 2901 THIRD AVENUE STE 500 SEATTLE WA 98121 SC 13G 1 000091205700005464-001-seq1-sc-13g.txt SCHEDULE 13G