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Telecom Substantive Rules - Chapter 26 §26.142 - Integrated Services Digital Network (ISDN). §26.142 (04/07/14) Order Adopting Amendments to §§26.5, 26.22, 26.23, 26.25, 26.27, 26.28, 26.30, 26.31, 26.34, 26.51, 26.52, 26.53, 26.73, 26.79, 26.80, 26.85, 26.89, 26.123, 26.128, 26.133, 26.142, 26.143, 26.211, 26.225, 26.226, 26.227, 26.228, 26.229, 26.230, 26.272, 26.311, 26.313, 26.317, 26.319, 26.321, 26.342, 26.406, 26.417, 26.418, 26.420, 26.421, 26.422, 26.423, and the Repeal of 26.431 as Approved at the March 6, 2014 Open Meeting Proposal for Publication of Amendments to §§26.5, 26.22, 26.23, 26.25, 26.27, 26.28, 26.30, 26.31, 26.34, 26.51, 26.52, 26.53, 26.73, 26.79, 26.80, 26.85, 26.89, 26.123, 26.128, 26.133, 26.142, 26.143, 26.211, 26.225, 26.226, 26.227, 26.228, 26.229, 26.230, 26.272, 26.311, 26.313, 26.317, 26.319, 26.321, 26.342, 26.406, 26.417, 26.418, 26.420, 26.421, 26.422, 26.423, and the Repeal of 26.431 as Approved at the November 15, 2013 Open Meeting