1 EXHIBIT 4.13 FORM OF AMENDMENT TO VOTING AND STOCK TRANSFER RESTRICTION AGREEMENT This AMENDMENT TO VOTING AND STOCK TRANSFER RESTRICTION AGREEMENT (this "Amendment") is entered into this ___ day of November, 2000, among Communication TeleSystems...Voting and Stock Transfer Restriction Agreement • November 14th, 2000 • World Access Inc /New/ • Communications equipment, nec
