substantial and legally 578 A.2d 600, 602 (Pa. Samuel J. Lansberry, Inc. v. Pa. PUC, credible.” Cmwlth. 1990). 3. The burden of proof is comprised of two distinct burdens: the burden of production and the burden of persuasion. The burden of production tells the adjudicator which party must come forward with evidence to support a particular proposition. See In re 430 Pa. 33, 240 A.2d 477, 482 (1968). The burden of persuasion Loudenslager’s Estate, determines which party must produce sufficient evidence to convince a judge that a fact has been established, and it never leaves the party on whom it is originally cast. Reidel v. County of 633 A.2d 1325, 1329 n. 11 (Pa. Cmwlth. Ct. 1993). Allegheny, 4. Core bears the burden of proving its claims, while Verizon bears the burden of proving the Verizon claims. 5. Core and Verizon are parties to two Pennsylvania interconnection agreements (ICAs): Verizon PA and Core interconnect pursuant to an ICA dated March 31, 2000, and Verizon North and Core interconnect pursuant to an ICA dated August 24, 2005. Amended Complaint ¶10; Answer to Amended Complaint ¶10, fn 3; Joint Petition of Verizon Pennsylvania Inc. and Core Communications, Inc. for Approval of an Docket No. Interconnection agreement under Section 252 of the Telecommunications Act, (Opinion and Order entered February 9, 2001); Joint Petition of Verizon North Inc. and Core Communications, Inc., for approval of the Adoption of an Interconnection Docket No. Agreement Under Section 252(i) of the Telecommunications Act of 1996, (Opinion and Order entered Nov. 1, 2005). 6. Core breached the ICAs by failing to pay bills for facilities, Verizon’s traffic termination and directory listings. 7. The ICAs control their contractual relationship and are the first parties’ place the Commission must look to determine applicable rates. Memorandum Opinion and Order, 18 FCC Rcd 7568, ¶ 32 CoreComm Communications, Inc. v. SBC Communications, Inc.,
substantial and legally credible.” Samuel J. Lansberry, Inc. v. Pa. PUC, 578 A.2d 600, 602 (Pa. Cmwlth. 1990). 3. The burden of proof is comprised of two distinct burdens: the burden of production and the burden of persuasion. The burden of production tells the adjudicator which party must come forward with evidence to support a particular proposition. See In re Loudenslager’s Estate, 430 Pa. 33, 240 A.2d 477, 482 (1968). The burden of persuasion determines which party must produce sufficient evidence to convince a judge that a fact has been established, and it never leaves the party on whom it is originally cast. Reidel v. County of Allegheny, 633 A.2d 1325, 1329 n. 11 (Pa. Cmwlth. Ct. 1993). 4. Core bears the burden of proving its claims, while Verizon bears the burden of proving the Verizon claims. 5. Core and Verizon are parties to two Pennsylvania interconnection agreements (ICAs): Verizon PA and Core interconnect pursuant to an ICA dated March 31, 2000, and Verizon North and Core interconnect pursuant to an ICA dated August 24, 2005. Amended Complaint ¶10; Answer to Amended Complaint ¶10, fn 3; Joint Petition of Verizon Pennsylvania Inc. and Core Communications, Inc. for Approval of an Interconnection agreement under Section 252 of the Telecommunications Act, Docket No. (Opinion and Order entered February 9, 2001); Joint Petition of Verizon North Inc. and Core Communications, Inc., for approval of the Adoption of an Interconnection Agreement Under Section 252(i) of the Telecommunications Act of 1996, Docket No. (Opinion and Order entered Nov. 1, 2005). 6. Core breached the ICAs by failing to pay Verizon’s bills for facilities, traffic termination and directory listings. 7. The parties’ ICAs control their contractual relationship and are the first place the Commission must look to determine applicable rates. Memorandum Opinion and Order, CoreComm Communications, Inc. v. SBC Communications, Inc., 18 FCC Rcd 7568, ¶ 32
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