Illinois

• Section - 1.Preface

• Section - 2.Vacant

• Section - 3.Service Charges

• Section - 4.Exchange Access Services

• Section - 5.Centrex Services

• Section - 6.Central Office Services

• Section - 7.Central Office Optional Features

• Section - 8.Miscellaneous Services

• Section - 9.Vacant

• Section - 10.Wide Area Telecommunications Services (WATS)

• Section - 11.Operator Services

• Section - 12.Vacant

• Section - 13.Vacant

• Section - 14.Vacant

• Section - 15.Dedicated Communications Services

• Section - 16.Special Billing Arrangements

• Section - 17.ISDN Services

• Section - 18.Video Services

• Section - 19.Vacant

• Section - 20.Vacant

• Section - 21.Vacant

• Section - 22.Vacant

• Section - 23.Vacant