1.GSM850/900/1800/1900Mhz Quadband
2.Caller ID display
3.IMEI changeable
4.32 sim cards
Features:
1) It is a 8 channels GSM Gateway that has 2 ports FXS interfaces;
2) Each port has 4 sim cards, 4 sim cards can rotate by using time or call out times
3) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc.;
4) It is compatible with Asterisk
5) Dialing tone frequency:450hz;
6) Employ Industrial module M10(850/900/1800/1900Mhz), M12(900/1800Mhz), SIM540(850/900/1800/1900Mhz), SIM500(900/1800Mhz), to make;
7) Can adjust dial interval from 0.5sec to 9 secs by setting up from telephone set;
8) Can adjust voice volume by setting up from telephone set;
9) SIM card supported (1.8V, 3V);
8) Caller ID display;
9) DTMF Dialing;
10) Bell signal;
11) Polarity reversal;
12) The RJ-11 socket which connect the phone or billing system for metering purpose;
13) Antenna socket (SMA);
14) IP Presetting;
15) Working status and Signal Strength by LED indicator; 16) IMEI Change (optional)