Detailed Product Description

gsm gateway with four channels MSQ-904

Protocal

Ø         TCP/IP V4 (IP V6 auto adapt)

Ø         ITU-T H.323 V4 Standard

Ø         H.2250 V4 Standard

Ø         H.245 V7 Standard

Ø         H.235 StandardMD5,HMAC-SHA1

Ø         ITU-T G.711 alaw/ulaw, G.729A, G.729AB, and G.723.1 Voice Codec

Ø         RFC1889 Real Time Data Transmission

Ø         Proprietary Firewall-Pass-Through Technology

Ø         SIP V2.0 Standard

Ø         Simple Traversal of UDP over NAT (STUN)

Ø         Web-base Management

Ø         PPP over Ethernet (PPPoE)

Ø         PPP Authentication Protocol (PAP)

Ø         Internet Control Message Protocol (ICMP)

Ø         TFTP Client

Ø         Hyper Text Transfer Protocol (HTTP)

Ø         Dynamic Host Configuration Protocol (DHCP)

Ø         Domain Name System (DNS)

Ø         User account authentication using MD5

Ø         Out-band DTMF Relay: RFC 2833 and SIP Info

Hardware spec

Ø         ARM9E Processor

Ø         DSP for voice codec and voice processing

Ø         Two 10/100 BaseT Ethernet ports with full compliant with IEEE 802.3

Ø         LEDs for Ethernet port status

Ø         Four GSM Channels Connection

Software spec

Ø         LINUX OS

Ø         Built-in HTTP Web Server

Ø         PPPoE Dial-up

Ø         NAT Broadband Router Functions

Ø         DHCP Client

Ø         DHCP Server

Ø         Firmware On-line upgrade

Ø         PSTN Caller ID transmit

Ø         Multiple Language Support

Ø         Supported call divert

Ø         Supported PSTN auto call out to PSTN

Ø         Supported Multi_devices Cooperate Mode(Group Mode)

Ø         Supported SMS call out