Model Number: T - 980M-6 Brand Name: Toparm Key Specifications/Special Features: Digital wireless communicator which integrates SMS alarm, data transmission, voice forwarding and more functionsIt communicates alarm control panel with CMS system via GSM network, can work with control panels of any brandsVery suitable for high safety places application and locations without phone, such as outdoor power station, water pumping station, communication room, microwave transmitting station and moreFeatures:LCD system information display, includes of signal intensity, working status indication and moreSMS alarm function: store max 50 SMS and max 40 characters per SMSGSM and PSTN (wired) alarm modes, prior to use PSTN to communicate and inspectPSTN connection situation automaticallyWhen PSTN phone line is cut-off, T-980GM will auto-transfer to GSM to send alarm report