gsm pstn

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GSM/PSTN Dual Network Home Alarm System Function Instruction: 1. Dual-network (GSM&PSTN) alarm function, alarm information more safe; Intelligent reco...

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...:British Version,UK Standard,US Standard,AU Standard,EU Standard Battery Type:Lithium Battery Function Description: 1. GSM + PSTN+ WIFI three in on...

...INTERNET environment and Asterisk PBX system needs to provide all the features. GSM400 is a 4 port wireless Asterisk PCI card which is mainly appli...

.../SMS Home Security Burglar Alarm System Door/Window Detector and PIR Detector alarm system wireless alarm system panel home security bur...

RJ45 2 Port Gsm Gateway Voip Device Black 2FXS+2FXO SIP PSTN failover Busy Tone Detection OFS-CG4 Serise Multi Gateway Description OFS- CG4 Analog Tel...

... SMS messaging system to advise of system alarms. provides a number of control and monitoring features We are authorized agent Deep Sea Electron...

... 32FXS 1911/1930/1960 ASI BOARD PBX unified communication gateways offer rich IP-PBX telephony and conferencing capabilities for up to 20,000 us...

... 2FXO ports and 2FXS ports and can be combined with BRI, PRI, and modules. FXO interfaces are used to connect your PBX to the . One FXO cha...

... Module Landline Cell Phone SIM Card Main Parameter •Voice indication for operating •Easy-to-operate than before •Dual serial ports, access...

... data, for example from electricity meters, gas meters, water meters, heat meters via , GPRS, PLC & LAN economically and environmentally "...