VoIP-GSM gateway Polygator G20 – tech.sheet
Technical sheet
GSM-gateway with Voice and SMS-features based on OS Linux
A universal hardware platform for lowering calls costs and termination
Specification
Item | Description |
|---|---|
PRODUCT NAME | Multichannel VoIP/GSM gateway POLYGATOR G20 |
CONSTRUCTION | Metal chassis with passive cooling, 5 slots for installation of channel boards (one central slot for board of 4 or 8 channels, 4 slots for up to 4 channel boards 4/8 channels each) |
INTERFACES/PROTOCOLS | |
GSM | |
GSM channels | 4, 8, 12, 16, 20, 24 channels |
Network types | Depending on package bundle: |
GSM modules | QUECTEL M12 (2 bands) or M10 (4 bands) or SimCom 5215 (4 bands + 3G, paid option) |
Transmitter power | 2 W (1 W) |
SIM-card | Small plug-in, 3В |
Antenna connector | SMA (female) impedance 50 Ohm |
Channel board | 4, 8, 12, 16, 20 or 24 GSM-channels with 1 SIM-card per channel, i.e. for installation of 4, 8, 12, 16, 20 or 24 SIM-cards. It is possible to use almost unlimited quantity of SIM-cards by connecting external/remote SIM-bank. |
VoIP | |
Voice signaling | SIP |
Voice channels quantity | 4 - 24 channels |
Codecs (hardware) | G.711 PCM at 64 kbps, G.729, G.723, G.726, DTMF support |
| SIM-cards management | |
| SIM-server Polygator | Full protocol support, ready to be connected to existing systems based on SIM-server Polygator |
| API | |
| External management protocol | Set of commands for managing gateway via port 9005 |
| SMS | |
| SMS-protocols | SMPP v3.4, AT-command mode (GSM-module as Ethernet-modem), Email-to-SMS / SMS-to-Email, custom SMS-protocol (port 9005), SMS via Web-interface, script execution on SMS arrival (Web-hooks), i.e. executing HTTP-request to external address (CURL) with SMS-details as parameters |
| Other ways to work with SMS | "SMS-client" software for port 9005 |
PRI/E1 (option) | |
E1 trunk module | May include one or two E1 trunks. 30 channels PCM, flow 2 Mbps standard G.703, G.704 ITU-T |
Modulation type | HDB3; A-Law encoding, Master/Slave |
PRI ISDN information | EDSS1 (Q.931), DTMF support. Connector RJ45 |
Impedance | 120 Ohm (standard) |
EQUIPMENT | |
Processor board | One Ethernet 10/100-Base T port, two USB-ports: 1st port – external Flash-memory, 2nd port – free / for WiFi or 3G-modem (optional). One COM-port (RS 232), one port PRI (option). |
Antenna | |
Omnidirectional | Angle-type antennas either discrete antennas (3m feeder) on magnetic base |
Directional (option) | Amplifying YAGI-antenna with coaxial cable. Cable length: 10m (can be longer if needed) |
Antenna combiner (option) | |
Channels quantity | 8 channels (using multiple combiners to cover more channels) |
Directional antenna | Amplifying YAGI-antenna with coaxial cable. Cable length: 10m (can be longer if required) |
Connection losses | 8–15 dB |
Input connector type | SMA (female), impedance 50 Ohm |
Output connector type | SMA (female), impedance 50 Ohm |
Software | |
Operating system | Linux 2.6.33 Kernel for ARM processor, OS BusyBox |
Management software | Elgatos service – provides calls commutation and all gateway features. Web GUI – provides comfortable access to most features and controls, allows to manager gateway via WEB-browser SIP-agent SipUA – provides SIP-protocol implementation and connection to external VoIP/SIP-applications or to preinstalled on-board Asterisk |
Additional software | Asterisk 1.6, VPN Client «OpenVPN», IP-Tables, web-server (thttpd) |
MAIN CHARACTERISTICS | |
Power supply standards | External power unit 12–19 V, direct current (DC), 4.5 А |
Control features | LED indication |
Remote control | TCP/IP (Telnet protocol): SSH via on-board IP/Ethernet: 10/100 Base-T, RJ-45 |
OTHER | |
| Dimensions without packing | 44.3 + ears x 20.5 x 4.4 cm (takes 1U in 19" rack) |
| Net weight | 4 kg |
Dimensions with packing | 55 x 31 x 10 cm |
Gross weight with default bundling (i.e. with no options) | 4.1 kg |
Operating temperature | 10–50 °C |
Relative humidity | Below 95 % at 40 °C |
Recommendations | Air-conditioned room, UPS, grounding |