ZyXEL Communications P-2304R-P1 Series - Manual (Page 226)

Appendix A Product Specifications
P-2304R-P1 Series User’s Guide
226
Table 112 Feature Specifications
Voice Functions SIP (RFC 3261) version 2
SDP (RFC 2327)
RTP (RFC 1889)
RTCP (RFC 1890)
G.168 Echo Cancellation
VAD (Voice Activity Detection)
Silence Suppression
CNG (Comfort Noise Generation)
QoS Supports TOS and Diffserv Tagging
Compression: G.711 (PCM), G.729 (ADPCM)
Loop Start Signaling Support
Modem and Fax Tone Detection and Pass Through
DTMF Detection
Point to Point Calling (Direct IP to IP Calling)
Speed Dial Phonebook
Support NAT Traversal / RFC 3489- IETF Simple Traversal of UDP Through
NAT (STUN)
Caller ID
Dialing Type: Tone, Pulse (Auto detection)
Tip/ring polarity reversal
Protocol Support PPP over Ethernet (RFC 2516)
Transparent bridging for unsupported network layer protocols.
DHCP Client
Management Embedded Web Configurator
CLI (Command Line Interpreter)
Remote Management via Telnet or Web
FTP/TFTP for firmware downloading, configuration backup and restoration
Syslog
Built-in Diagnostic Tools for FLASH memory, RAM and LAN port
Firewall Stateful Packet Inspection.
Prevent Denial of Service attacks such as Ping of Death, SYN Flood, LAND,
Smurf etc.
Real time E-mail alerts.
Reports and logs.
Content Filtering Service blocking.
Web page blocking by URL keyword.
NAT/SUA Port Forwarding
2048 NAT sessions
Multimedia application.
PPTP under NAT/SUA.
IPSec passthrough
SIP ALG passthrough.
Static Routes 16 IP and 4 Bridge
Other Features Internal SPTGEN
DNS Proxy
Dynamic DNS
Any IP
IP Alias
Traffic Redirect