As governments and regional organizations work to set the ground rules for interconnection, they inevitably confront vexing and complex issues involving the basic legal and regulatory frameworks that must be installed and enforced, as well as the technical scope and characteristics of interconnection arrangements. Policy-makers must resolve such basic questions as (1) which carriers are required to offer interconnection; (2) how the costs will be calculated and recovered; and (3) at what points in the public switched network interconnection should occur.