EXHIBIT A Conformed Copy CALL OPTION NOTICE AND WAIVER This Call Option Notice and Waiver (this "Notice and Waiver") is entered into as of December 20, 2000 by and between Telenor East Invest AS ("Telenor") and Open Joint Stock Company...Call Option Notice and Waiver • January 5th, 2001 • Telenor East Invest As • Radiotelephone communications
