Product Specifications/Features :
1) It is a 8 channels GSM Gateway that has 8 ports FXS interfaces;
2)It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc.;
3)Dialing tone frequency:450hz;
4)Employ Industrial module Sim300(900/1800/1900Mhz), Sim340 (850/900/1800/1900Mhz) or Wavecom Q2303A, Q2403A, SIM300W ( 900/1800Mhz)] to make;
5) Can adjust dial interval from 0.5sec to 9 secs by setting up from telephone set;
6) Can adjust voice volume by setting up from telephone set;
7) 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)
