Phone port. see, 375 voice specifications – ZyXEL Communications P-2602H User Manual
Page 375

Appendix A Product Specifications
P-2602H(W)(L)-DxA User’s Guide
375
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.
Management
Embedded Web Configurator
CLI (Command Line Interpreter)
SNMP v1 & v2c with MIB II
Embedded FTP/TFTP Server for firmware upgrade and configuration file
backup and restore
Telnet for remote management
Remote Management Control: Telnet, FTP, Web, SNMP and DNS.
VoIP Auto-provisioning via TFTP / HTTP / HTTPS
Remote Firmware Upgrade
Syslog
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
1024 NAT sessions
Multimedia application
PPTP under NAT/SUA
IPSec passthrough
SIP ALG passthrough
VPN
20 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 167 Firmware Specifications (continued)