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TITLE 83: PUBLIC UTILITIES
CHAPTER I: ILLINOIS COMMERCE COMMISSION SUBCHAPTER f: TELEPHONE UTILITIES PART 737 STANDARDS OF SERVICE AND CUSTOMER CREDITS FOR ELECTING PROVIDERS AND COMPETITIVE NON-ELECTING PROVIDERS SECTION 737.440 INTEROFFICE TRUNKS
Section 737.440 Interoffice Trunks
Local interoffice trunks and intraoffice trunks, interoffice toll trunks, and the intertoll trunk and any related switching components shall be engineered so that at least 98% of calls shall not encounter an All Trunks Busy (ATB) condition and at least 98% of properly dialed incoming interMSA calls, during the busy hour, shall receive ringing signal, station busy tone, or intercept (other than ATB) on the first attempt. When the completion rate falls below 98% for 3 consecutive months, corrective action shall be initiated and the action reported to the Commission. |