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Comtrend CT-820C

details: Wireless VoIP Gateway
hardware type: VoIP Gateway
date added: 2010-05-24
updated: 2015-10-24
The CT-820C is an 802.11b/g compliant VoIP Gateway. It includes one 10/100Base-T Ethernet port as WAN, four 10/100Base-T Ethernet LAN ports, two FXS ports for VoIP and one FXO port.

This router provides a variety of VoIP features, such as Caller ID, 3-way conferencing and Echo Cancellation. It supports VPN pass-through for IPSec, L2TP and PPTP.

A built-in SPI firewall protects the network against hackers and Denial of Service (DoS) attacks.
 
 
 
 CT-820C Features
 General
 Availability: discontinued
 LAN / WAN Connectivity
 WAN ports: 1
 WAN port(s) type: 10/100 Base-TX (RJ-45)
 WAN port auto cross-over: yes
 LAN ports: 4
 LAN ports type: 10/100 Base-TX (RJ-45)
 LAN ports auto cross-over: yes
 RJ-11 FXS VoIP phone ports: 2
 RJ-11 FXO VoIP PSTN wall jack port: 1
 Router
 NAT routing: yes
 Multihomed: yes
 DMZ: yes
 Port forwarding: yes
 Port triggering: yes
 DHCP server: yes
 DHCP client: yes
 DHCP relay: yes
 DNS proxy: yes
 Dynamic DNS client: yes
 QoS: yes
 ToS / DiffServ: yes
 Routing Protocols: RIP v1 (static routing, RFC 1058)
RIP v2 (dynamic routing, RFC1389)
IGMP Multicast (RFC 1112)
 VoIP
 VoIP Protocols: SIP v2 (RFC 3261)
SDP (RFC 2327)
RTP / RTCP (RFCs 1889/1890)
T.38 (Fax over IP)
 VoIP Audio Codecs: G.711 (PCM)
G.729 (a/b)
 VoIP Voice Features: Echo Cancellation (G.165/G.168)
3-way conferencing
Caller ID
Call waiting
Call transfer
Call forward
 Wireless
 Maximum Wireless Speed: 54 Mbps
 WiFi standards supported: 802.11b (11 Mbps)
802.11g (54 Mbps)
 Wifi security/authentication: WEP
WPA (TKIP)
802.1X (EAP-MD5/TLS/TTLS/PEAP)
Wireless MAC Address filtering
 WiFi modes: Access point
 VPN
  IPSec
 IPSec passthrough: yes
  L2TP
 L2TP passthrough: yes
  PPTP
 PPTP passthrough: yes
 Firewall
 SPI firewall: yes
 DoS / DDoS protection: yes
 Filtering: packet filtering
 Device Management
 Default IP address: 192.168.1.1
 Default admin username: root
 Default admin password: 12345
 Administration: Web-based (LAN)
Remote configuration (WAN)
Quick Setup Wizard
Telnet / CLI
TFTP (RFC 1350)
 Firmware upgradeable: yes
 Configuration backup/restore: yes
 Event log: yes
 Usage Statistics: yes
 Diagnostic functions: yes
 Misc hardware info
 SNMP support: SNMP v.2
 NTP client: yes
 Links
 Product page: http://www.comtrend.com/worldwide.htm
 Datasheet: http://www.comtrend.com/dbase/upload/CT8...
 Manual: http://download.comtrend.com/CT-820C.PDF

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