 8 Ports GSM VOIP Gateway (Model: WT-2208)
The WT-2208 GSM VoIP Gateway enables direct routing between IP and GSM network without the use of a FXO port or the PSTN network.It is the GSM network and the VoIP network connecting seamlessly new poducts. Mobile phone SIM cards will be installed in the device, and WT-2208 users can be achieved through the GSM network on the car aligh.It bulit-in SIP and H.323, configuration flexibility. SIP can be thoroughly used when electricity came display unbers. With this WT-2208, the usage of VoIP is greatly enhanced with significant savings on long distance and roaming charges.
Appearance
 LAN - Connect this port to an Ethernet Switch/Router, the Ethernet of a DSL modem, or other network access equipment.
PC - Connect a computer or other network device to this port.
POWER (DC12V/3000mA) - Connect the 12V/2000mA Adapter provided to this power jack.
Reset - Press this button to reset the WT-2204 GSM VoIP Gateway to factory defaults
Protocol
- TCP/IP V4 (IP V6 auto adapt)
- ITU-T H.323 V4 Standard
- H.2250 V4 Standard
- H.245 V7 Standard
- H.235 Standard（MD5，HMAC-SHA1）
 - ITU-T G.711 alaw/ulaw, G.729A, G.729AB, and G.723.1 Voice Codec
- RFC1889 Real Time Data Transmission
- Proprietary Firewall-Pass-Through Technology
- SIP V2.0 Standard
- Simple Traversal of UDP over NAT (STUN)
- Web-base Management
- PPP over Ethernet (PPPoE)
- PPP Authentication Protocol (PAP)
- Internet Control Message Protocol (ICMP)
- TFTP Client
- Hyper Text Transfer Protocol (HTTP)
- Dynamic Host Configuration Protocol (DHCP)
- Domain Name System (DNS)
- User account authentication using MD5
 - Out-band DTMF Relay: RFC 2833 and SIP Info
Software Specifications
- LINUX OS
- Built-in HTTP Web Server
- PPPoE Dial-up
- NAT Broadband Router Functions
- DHCP Client
- DHCP Server
- Firmware On-line upgrade
- PSTN Caller ID transmit
- Multiple Language Support
- Supported call divert
- Supported PSTN auto call out to PSTN
- Supported Multi_devices Cooperate Mode(Group Mode)
 - Supported SMS call out
Hardware Specifications
- Characteristics of the hardware and Parameters
- Processor: ARM9E 133MHz
- DSP:VPDSP101-4 100MHz
- RAM :16M
- Flash :4M
- Power: DC12V/3000mA +-10% Input AC100V to AC240V
- GSM Module Type: Default 900M/1800M Optional 850M/1900M
- Consumption: The Maximum 5 W
- LEDs: RUN, GSM, LAN, PC,GSM
- Network Ports: 2 RJ45; Supported NAT 100/10BASE-T
- Weight :900 Grams Full Set
- Working Temperature: 0－40℃
- Working Humidity : 40％－90％ Not Congealed
- Colour : Grey
- GSM SIM Ports: 8
- VoIP Channels: 8
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