- Telephones and telephone apparatus (15)
- Autotransformers for telephone switchboards (1)
- Communication headgear, telephone (4)
- Facsimile equipment (2)
- Modems (4)
- Switching equipment, telephone (1)
- Telephone answering machines (1)
- Telephone central office equipment, dial or manual (1)
- Telephone dialing devices, automatic (1)
- Telephone sets, all types except cellular radio (6)
- PBX equipment, manual or automatic (1)
- Carrier equipment, telephone or telegraph (2)
- Data sets, telephone or telegraph (2)
- Message concentrators (1)
- Fiber optics communications equipment (13)
