CDMA Router - H685c

>>| Brief
The GPRS Router and HSUPA Router are popular using cellular router in the world under gprs and hsdpa networks.
There is another 2.5G network called CDMA networks. And it comes the CDMA Router. The CDMA Cellular Router is designed for establish a cellular broad band Internet connection. The Cellular CDMA Router enables users to quickly create a secure wireless network and provide access to the Internet using a cellular network. By connect to cellular network; an Internet connection can be accessed and shared virtually anywhere within a wireless broadband network.
The CDMA Router is widely used in more than 50 countries and regions, and more than twenty industrial fields, such as power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other areas.
 >>| Basic Features 
Supports multi-band CDMA1x networks 
SMA Standard antenna 
Optimized EMC design 
Always on line: On-line detection and automatic redial and keep-alive while the line dropped 
Wide range power input 
Smart power management 
Reliable, flexible, easy to use and management 
RS-232/485 interface transparent communication (DTU modem function) 
1 LAN RJ45 ports for Ethernet interface 
WiFi 802.11b/g/n optional
>>| Enhanced Features 
Real-time clock 
VPN (PPTP, L2TP, IPSec) optional 
Built-in DHCP server 
Supports NAT and DMZ host 
Supports DNS proxy and Dynamic DNS (DDNS) 
Supports Static routing table 
Supports packet filter 
Built-in multi-routing backup (Ethernet and dialup network) 
System and network monitoring 
WAN interface traffic statistics 
Support multiple protocol conversion 
Transparent data transmission (DTU feature) optional 
WEB/Telnet/console management interface 
Support radio network data envelope counting 
Self-diagnostic and alarm output 
Local/remote profiles backup and retrieve 
Local/remote firmware upgrade via web 
Remote web management 
Urgent event alarm via SMS optional 
Firewall, packet filtering 
Support data center communication 
Support NTP 
Support LED status indication 
Support VLAN 
Support LCP,
ICMP check
>>| Enhanced Features 
Multi-level link detection and redial, keep the traffic channel alive
1. PPP detection
2. Local and remote ICMP detection
3. Heart-beat detection
4. WAN interface traffic detection 
On/off line control
1. Auto or manual dial
2. Timing on/off line control 
Flexible data communication
1. Supports layer 2 and 3 data communication
2. Supports RS-232 transparent communication: UDP/IP or TCP/IP Client/Server
3. Supports both RS-232 and Ethernet communication 
Configuration and remote management
1. Multi-language web based configuration interface (local or remote)
2. Supports Telnet local or remote operation
3. CLI operation 
Virtual online technology（VKL, only CDMA）
1. Release wireless network channel while there is no user’s data traffic
2. Keep the router online logically when the wireless channel released
3. The router will immediately restore to the connected status without any redial or authentication if there is any data transmitted

Originated by zouyanbing from blog of Wireless & Cellular Modem/Router/AP Device