IFS Audio & Intercom Products
| IFS Compatibility Chart: Audio & Intercom Systems |
| Manufacturer | Models | IFS Products |
| Aiphone | LEM, LEF, NEM | VIC5211 Series |
| Code Blue | All Models of Emergency Phones | TT/TR2000 Series |
| Commend | SS101F, SS201HF, INT004, unit GE100 | AT/AR1000 & AR2000 Series |
| Dorado Systems | Series 300 | AT/AR1000 Series |
| Siedle | SIC3000, SGB Series | VTS4900WDM, SGBT1000WDM Series |
| Talk-A-Phone | All Models of Emergency Phones
Emergency Phones connected to EC8 Concentrator | TT/TR2000-T Series |
| TOA | Model IC100 | VIC5211 |
| Trigon Electronics | All Models of Emergency Phones | TT/TR2000 Series |
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