The IP7-FX is an all-in-one, multipurpose IP intercom, access control, and paging module. When paired with a call station (such as the IPIC-DOOR-QM4), the module can be used in half duplex mode. This combination allows for answering a call from the call station by either a Desktop/Surface mount stand-alone intercom or from the included TalkMaster Focus PC software. This intercom/paging amplifier module can also be used with speakers for amplified paging and intercom applications. IP7-FX is a new design with improvements that can replace existing intercom/paging units: IP7-ST-STx, IP7-SE8/SS8, IP7-FD and IP7-SS20. Depending on the power supply used with the IP7-FX, it can replace the 8-Watt IP7-SE8/SS8 or the 20-Watt IP7-SS20. The IP7-FX is a great choice anywhere remote communications might be needed. Examples include: Schools Universities Truck Scales Gated homes The IP7 Firmware Feature enables compatibility with Digital Acoustics TalkMaster FOCUS software and/or to SIP based phone systems. The S3 Firmware Feature enables an IP Endpoint to connect to a SIP based Phone System. The S3/InformaCast Firmware Feature enables the IP Endpoint to connect to Singlewire's InformaCast software and to SIP based Phone systems. Please note that InformaCast only supports outbound paging even on products that have two-way capabilities. Order Summary SKU Firmware Feature Manufacturer Part # (MPN) GC-IPIC-IP7-FX IP7 IP7-FX GC-IPIC-IP7-FX-S3 SIP Only IP7-FX-S3 GC-IPIC-IP7-FX-IC InformaCast IP7-FX-S3-IC