1.General description
Gsm fwt-8848 is a gsm to analog converter(single port, insert 1 sim card only), the device can produce a fxs line to allow a regular phone to be connected and used just like a local landline(pstn) except your calls will go out the gsm network. This device can both receive and make calls.
The main application is: connecting the rj-11 fxs line to connect ordinary telephone set for voice call; to connect pbx for call extensions; to connect billing systems for public phone use; to connect voip fxo gateway to realize voip call termination; to connect alarm system for security purpose, etc. It is not a voip gateway, nor a gsm+voip gateway, it is a gsm fixed wireless terminal that produces an analog fxs phone line .
2.Features:
1)frequency:gsm 900/1800mhz or gsm 850/900/1800/1900mhz
2) it is a 1 channel gsm gateway which has 2 rj-11 outputs for extensions;
3) it can connect with ordinary telephone set, pbx , voip gateway, billing meter etc. ;
4) dialing tone frequency:450hz;
5) employ industrial module to make;
6) can adjust dial interval from 0.5sec to 9 secs by setting up from telephone set;
7) can adjust voice volume by setting up from telephone set;
8) sim card supported (1.8v, 3v);
9) caller id display;
10) dtmf dialing;
11) bell signal;
12) polarity reversal;
13) the rj-11 socket which connect the phone or billing system for metering purpose;
14) antenna socket (sma);
15) ip presetting;
16) working status and signal strength by led indicator;
17) imei change (optional).
18) back up li-ion battery( optional) 7.2v 1300mah.Standby 24hrs, talking time: 2.5hrs.
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