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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 K32

CONSTRUCTION

Metal chassis with active cooling, 4 slots for installation of channel boards

INTERFACES/PROTOCOLS


GSM


GSM channels

8, 16, 24, 32 channels

Network types

Depending on package bundle:
2 bands (900/1800 MHz)
4 bands (850/900/1800/1900 MHz)
4 bands + 3G (WCDMA) (850/900/1800/1900 MHz + 2100 MHz) (option)

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

8, 16, 24 or 32 GSM-channels with 1 SIM-card per channel, i.e. for installation of 8, 16, 24 or 32 SIM-cards.

It is possible to use almost unlimited quantity of SIM-cards by using remote SIM-management technology SIM-server/SIM-bank

VoIP


Voice signaling

SIP

Voice channels quantity

8 - 32 channels

Codecs (hardware)

G.711 PCM at 64 kbps, G.729, G.723, G.726, DTMF support

SIM-cards management

SIM-server PolygatorFull protocol support, ready to be connected to existing systems based on SIM-server Polygator
API
External management protocolSet of commands for managing gateway via port 9005
SMS
SMS-protocolsSMPP 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, several USB-ports. One COM-port (RS 232), one port PRI (option)

Antenna


Omnidirectional

Angle-type solid small antennas or discrete antennas (3m feeder, 10 cm height) on magnet base

Directional (option)

Amplifying YAGI-antenna with coaxial cable 10m length (can longer on order)

Antenna combiner (option)


Channels quantity

8 channels (use 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

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 (optional), VPN Client «OpenVPN», IP-Tables, web-server (thttpd)

MAIN CHARACTERISTICS


Power supply standards

Power supply 220V (AC)

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___
Net weight___

Dimensions with packing

62 х 57 х 34 cm

Gross weight with default bundling (i.e. with no options)

15.3 kg

Operating temperature

10–50 °C

Relative humidity

Below 95 % at 40 °C

Recommendations

Air-conditioned room, UPS, grounding

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