Vigor IPPBX2820 combines an IP-PBX (SIP Server), Firewall and VPN Server in one affordable unit for small to mid-size organizations. Its VPN features help resolve many VOIP scenarios. With 1× FXS and 1× FXO, it flexibly extends an existing phone system over the internet without extra call charges.

Unlike many other brands, Corecasys sells products together with after-sales service and the knowledge you need to use our equipment. As a systems integrator (SI), we help you use the product until your requirements are fully met. Our three-week trial policy also proves that after you buy, the equipment must work reliably for you — not create problems and frustration.

1 x 100Base-TX WAN port, RJ-45

2 x Configurable (NT/TE), RJ-45

Registration and authentication

Extension Privilege Assign

Call Barring, Call Routing, Call Park *, Call Pickup *

In/Outbond call through FXO Interface *

In/Outbond call through ISDN-TE Interface

MWI ( Message Waiting Indicator )

G.168 line echo-cancellation

Voice codec : G.711, G.723.1, G.726, G.729, VAD/CNG, iLBC *

DTMF tone : Inband / Outband ( RFC-2833 )/ SIP Info

FAX/ Modem support : Tone detection / G.711 pass-through / T.38 for FAX *

Protocol : PPTP, IPSec, L2TP, L2TP over IPSec

Encryption : MPPE and Hardware-based AES/DES/3DES

Authentication : Hardware-based MD5, SHA-1

IKE Authentication : Pre-shared key and digital signature ( X.509 )

LAN-to-LAN, Teleworker-to-LAN

Dead Peer Detection ( DPD )

Multi-NAT / DMZ host / Port-redirection / Open port

SPI ( Stateful Packet Inspection ) ( Flow Track )

E-mail alert and logging via syslog