Upon request of any customer, the local exchange carrier shall make a test of any call data recording device related to billing, provided such a request is not made more frequently than once every 6 months.
Ill. Admin. Code tit. 83, § 730.440
Upon request of any customer, the local exchange carrier shall make a test of any call data recording device related to billing, provided such a request is not made more frequently than once every 6 months.
Ill. Admin. Code tit. 83, § 730.440