ZyXEL Communications P-2304R-P1 Series User Manual

 Appendix A Product Specifications

P-2304R-P1 Series User’s Guide

Multiple Voice Channels

The ZyXEL Device can simultaneously handle multiple voice channels 

(telephone calls). Additionally you can answer an incoming phone call 

on a VoIP account, even while someone else is using the account for a 

phone call.

Comfort Noise Generation

The ZyXEL Device generates background noise to fill moments of 

silence when the other device in a call stops transmitting because the 

other party is not speaking (as total silence could easily be mistaken for 

a lost connection).

Voice Activity Detection/

Silence Suppression

Voice Activity Detection (VAD) reduces the bandwidth that a call uses by 

not transmitting when you are not speaking.

Echo Cancellation

The ZyXEL Device supports G.168, an ITU-T standard for eliminating 

the echo caused by the sound of your voice reverberating in the 

telephone receiver while you talk.

Auto-provisioning

Your VoIP service provider (the company that lets you make phone calls 

over the Internet) can automatically update your ZyXEL Device’s 

configuration via an auto-provisioning server.

Firewall

You can configure firewall on the ZyXEL Device for secure Internet 

access. When the firewall is on, by default, all incoming traffic from the 

Internet to your network is blocked unless it is initiated from your 

network. This means that probes from the outside to your network are 

not allowed, but you can safely browse the Internet and download files 

for example.

Content Filter

The ZyXEL Device blocks access to web sites with URLs that contain 

keywords that you specify. You can define time periods and days during 

which content filtering is enabled. 

Bandwidth Management 

You can efficiently manage traffic on your network by reserving 

bandwidth and giving priority to certain types of traffic and/or to 

particular computers. This policy-based bandwidth allocation helps your 

network to better handle real-time applications such as Voice-over-IP 

(VoIP).

Remote Managemet

This allows you to decide whether a service (HTTP or FTP traffic for 

example) from a computer on a network (LAN or WAN for example) can 

access the ZyXEL Device.

Time and Date

Get the current time and date from an external server when you turn on 

your ZyXEL Device. You can also set the time manually. These dates 

and times are then used in logs.

Logging and Tracing

Use packet tracing and logs for troubleshooting. You can send logs from 

the ZyXEL Device to an external UNIX syslog server.

PPPoE

PPPoE mimics a dial-up over Ethernet Internet access connection.

Universal Plug and Play 

(UPnP)

The ZyXEL Device can communicate with other UPnP enabled devices 

in a network. 

Table 111   Firmware Features