Sec. 651.16. Retention of telephone toll records

Each company that offers or bills toll telephone service shall retain for a period of 18 months such records as are necessary to provide the following billing information about telephone toll calls: the name, address, and telephone number of the caller, telephone number called, date, time, length of call, method of completion of call (e.g., direct dial, operator assisted, third number or calling card) and automatic message accounting tapes. Each company shall retain this information for toll calls that it bills whether it is billing its own toll service customers for toll calls or billing customers for another company.