User`s guide

Chapter 32 Product Specifications
P-2602HWUDL-D User’s Guide
437
Voice Specifications
" To take full advantage of the supplementary phone services available through
the ZyXEL Device's phone ports, you may need to subscribe to the services
from your VoIP service provider.
" Not all features are supported by all service providers. Consult your service
provider for more information.
Other Features Zero Configuration (VC auto-hunting)
Traffic Redirect
Dynamic DNS
SPTGEN
QoS
Firewall Stateful Packet Inspection
Prevent Denial of Service attacks such as Ping of Death, SYN Flood, LAND,
Smurf etc.
Access Control of Service
Content Filtering
IP & Generic Packet Filtering
Real time Attack Alerts and Logs
Reports and logs
SIP ALG passthrough
NAT/SUA Port Forwarding
2048 NAT sessions
Multimedia application
PPTP under NAT/SUA
IPSec passthrough
SIP ALG passthrough
VPN 2 IPSec tunnels
IKE and Manual Key Management
AH and ESP Protocol
DES, 3DES and AES Encryption
SHA-1 and MD5 Authentication
Tunnel and Transport Mode Encapsulation
IPSec NAT Traversal
NETBIOS pass-through for IPSec
Table 176 Firmware Specifications (continued)