// CODE SNIPPET
188.8.131.52 Dual Control
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If using facilities leased from a telephone company, that portion of the primary trunk facility between the supervising station and its serving wire center shall not be required to comply with the separate routing requirement of the primary trunk facility. Dual control, if used, shall require supervision as follows:
- Dedicated facilities that are able to be used on a full-time basis, and whose use is limited to signaling purposes as defined in this Code, shall be exercised at least once every hour.
Paragraphs 184.108.40.206.4(2) and 220.127.116.11.2.2(F) were revised by a tentative interim amendment (TIA). See page 1.
- Public switched telephone network facilities shall be exercised at least once every 6 hours.
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