| Category | Subcategory | Product name |
|---|---|---|
| Communications | Telephone | Inter-Tel Telephone 8690 |
| Communications | Telephone | Inter-Tel Telephone Axxess |
| Communications | Telephone | Inter-Tel Telephone Model 8520 |
| Communications | Telephone | Interquartz Telephone 9826N |
| Communications | Telephone | Interquartz Telephone 98380 |
| Communications | Telephone | Interquartz Telephone 98583 |
| Communications | Telephone | Interquartz Telephone 9859 |
| Communications | Telephone | Interquartz Telephone IQ331 |
| Communications | Telephone | Interquartz Telephone IQ333 |
| Communications | Telephone | Interquartz Telephone IQ560E |
| Communications | Telephone | Interquartz Telephone IQ750 |
| Communications | Telephone | Invacare Telephone 5143B |
| Communications | Telephone | IRIS Telephone 200 |
| Communications | Telephone | ITT Telephone EKS-701 |
| Communications | Telephone | Jabra Telephone 9450 |
| Communications | Telephone | Jensen Telephone KT2008 |
| Communications | Telephone | Jensen Telephone KT2012 |
| Communications | Telephone | Jensen Tools Telephone 100 Sereis |
| Communications | Telephone | Jwin Telephone JT-P430 |
| Communications | Telephone | Jwin Telephone JT-P433 |