- Telephones and telephone apparatus (7)
- Communication headgear, telephone (2)
- Headsets, telephone (1)
- Modems (4)
- Switching equipment, telephone (1)
- Telephone central office equipment, dial or manual (1)
- Telephone station equipment and parts, wire (1)
- Electronic secretary (2)
- Message concentrators (1)
- Multiplex equipment, telephone and telegraph (1)
- Fiber optics communications equipment (8)
