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Georgia. Department of Audits and Accounts. Performance Audit Operations Division (2007-07). Special examination: Voice over Internet Protocol [July 2007]. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-ba800-b-ps1p4-bv6-b2007-belec-p-btext

Georgia. Department of Audits and Accounts. Performance Audit Operations Division. "Special examination: Voice over Internet Protocol [July 2007]." 2007-07. July 31, 2025. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-ba800-b-ps1p4-bv6-b2007-belec-p-btext.