Products in 4.2 Phone Systems
| Product name | Manufacturer |
|---|---|
| Symbiant: Celluar Phone Repeater/Amplifier System | Bri-Tech |
| SN-920 Cordless Phone | EnGenius |
| KX-T7736 24-Button Speakerphone | Panasonic |
| KX-TA824 | Panasonic |
| KX-TA824 Phone System | Panasonic |
| W-3000 Handsfree Door Intercom | Viking |