VoIP Business ADSL products / 3G /Diginet/ IBurst

	DrayTek Vigor 2820Vn (VoIP, 3G, Diginet, Iburst, 32 VPN, Wireless)

1. Dual-WAN Outbound Policy-based Load-balance
BoD ( Bandwidth On Demand )
WAN Connection Fail-over

2. ADSL Compliant ( DSL ) ANSI T1.413 Issue2
ITU-T G.992.1 G.dmt
ITU-T G.992.2 G.lite
ITU-T G.992.3 ADSL2 G.dmt.bis
ITU-T G.992.5 ADSL2+
Multi-PVC
Annex L ( READSL )
Annex M *

3. ATM Protocols ( DSL ) RFC-2684 / RFC-1483 Multiple Protocol over AAL5
RFC-2516 PPP over Ethernet
RFC-2364 PPP over AAL5
PPPoE Pass Through LAN / WLAN
PPPoE / PPPoA Relay
Transparent Bridge for MPoA

4. VoIP ( Voice over IP ) Protocol : SIP / RTP / RTCP
12 SIP Registrars
G.168 Line Echo-cancellation
Automatic Gain Control
Jitter Buffer ( 180ms )
Voice Codec :
G.711 A/µ Law
G.723.1
G.726
G.729 A / B
VAD / CNG
iLBC*
DTMF Tone :
In Band
Out Band ( RFC-2833 )
SIP Info
FAX / Modem Support :
Tone Detection
G.711 Pass-through
T.38 for Fax
Supplemental Services :
Internal Call
Call Hold / Retrieve / Waiting
Call Waiting with Caller ID
Call Transfer
Call Forwarding ( Always / Bust / No Answer )
Call Barring ( Incoming / Outgoing )
DND ( Do Not Disturb )
MWI ( Message Waiting Indicator ) ( RFC-3842 )
Hotline
Two MSN ( Multiple Subscriber Numbers ) on Each ISDN S0 Port for VoIP Call ( for VS model )
Dial Plan :
Phone Book
Digit Map
ISDN Loop-through ( TE mode only )
ISDN On-Net / Off-Net ( TE mode only )

5. Wireless Access Point IEEE802.11n Compliant ( Draft 2.0 )
Wireless Client List
Wireless LAN Isolation
64 / 128 bit WEP
WPA / WPA2
Hidden SSID
Mac Address Access Control
Access Point Discovery
Multiple SSID
Wireless Rate-control
WMM ( Wi-Fi Multimedia )
WDS ( Wireless Distribution System )
802.1x Authentication

6. VPN Up to 32 VPN Tunnels
Protocol :
PPTP
IPSec
L2TP
L2TP over IPSec
Encryption :
MPPE
Hardware-based AES
DES
3DES
Authentication
Hardware-based MD5
SHA-1
IKE Authentication :
Pre-shared Key
Digital Signature ( X.509 )
LAN-to-LAN , Teleworker-to-LAN
NAT-Traversal ( NAT-T )
Dead Peer Detection ( DPD )
VPN Pass-through

7. Firewall Policy-based Firewall
CSM ( Content Security Management ) for IM / P2P Application and URL / Web Content Filter
Multi-NAT / DMZ Host / Port-Redirection / Open Port
SPI ( Stateful Packet Inspection ) ( Flow Track )
DoS / DDoS Prevention
IP address Anti-spoofing
E-Mail Alert and Logging via Syslog
IP and MAC Binding

8. Bandwidth Management QoS :
Guarantee Bandwidth for VoIP
Class-based Bandwidth Guarantee by User-Defined Traffic Categories
DiffServ Code Point Classifying
4-level Priority for Each Direction ( Inbound / Outbound )
Bandwidth Borrowed
Bandwidth / Session limitation

9. WAN Protocol ( WAN2 ) DHCP Client
Static IP
PPPoE
PPTP
BPA
L2TP*

10. Network Feature Port-based VLAN
DNS Cache / Proxy
DHCP Client / Relay / Server
IGMP Proxy
Dynamic DNS
NTP Client
Call Scheduling
RADIUS Client
UPnP
Routing Protocol :
Static Routing
RIP V2

11. USB 3G USB Modem
USB Printer

12. Network Management Web-based User Interface ( HTTP / HTTPS )
Quick Start Wizard
CLI ( Command Line Interface , Telnet / SSH )
Administration Access Control
Configuration Backup / Restore
Built-in Diagnostic Function
Firmware Upgrade via TFTP / FTP / HTTP / TR-069*
Logging via Syslog
SNMP Management MIB-II
TR-069*
TR-104*