Any customer, by written request to the Telecommunications Division of the Commission, may have a test of any recording device related to its billing, conducted by the local exchange carrier in the presence of a representative of the Commission, provided such request is not made more frequently than once every 6 months.
Ill. Admin. Code tit. 83, § 730.445
Amended at 24 Ill. Reg. 13861, effective September 1, 2000