ZyXEL Communications P-793H User Manual

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 Chapter 3 Wizards
P-793H User’s Guide
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Launch your web browser and navigate to 
www.zyxel.com
. If you cannot access the Internet, 
open the web configurator again to confirm that the Internet settings you configured in the 
wizard setup are correct.
Internet access is just the beginning. Refer to the rest of this guide for more detailed 
information on the complete range of ZyXEL Device features.
3.2  Bandwidth Management Wizard
Use these screens to control the amount of bandwidth going out through the ZyXEL Device’s 
WAN port and prioritize the distribution of the bandwidth. This helps keep one service, or 
application, from using all of the available bandwidth and shutting out other services.
The following table describes the services you can select.
Table 12   Bandwidth Management Setup: Services
SERVICE
DESCRIPTION
E-Mail
Electronic mail consists of messages sent through a computer network to specific 
groups or individuals. Here are some default ports for e-mail: 
POP3 - port 110
IMAP - port 143
SMTP - port 25
HTTP - port 80
FTP
File Transfer Program enables fast transfer of files, including large files that may 
not be possible by e-mail. FTP uses port number 21.
NetMeeting 
(H.323)
A multimedia communications product from Microsoft that enables groups to 
teleconference and videoconference over the Internet. NetMeeting supports VoIP, 
text chat sessions, a whiteboard, and file transfers and application sharing. 
NetMeeting uses H.323. H.323 is a standard teleconferencing protocol suite that 
provides audio, data and videoconferencing. It allows for real-time point-to-point 
and multipoint communication between client computers over a packet-based 
network that does not provide a guaranteed quality of service. 
H.323 is transported primarily over TCP, using the default port number 1720. 
VoIP (H.323)
Sending voice signals over the Internet is called Voice over IP or VoIP. 
H.323 is a standard teleconferencing protocol suite that provides audio, data and 
videoconferencing. It allows for real-time point-to-point and multipoint 
communication between client computers over a packet-based network that does 
not provide a guaranteed quality of service. 
H.323 is transported primarily over TCP, using the default port number 1720. 
VoIP (SIP)
Sending voice signals over the Internet is called Voice over IP or VoIP. Session 
Initiated Protocol (SIP) is an internationally recognized standard for implementing 
VoIP. SIP is an application-layer control (signaling) protocol that handles the 
setting up, altering and tearing down of voice and multimedia sessions over the 
Internet.
SIP is transported primarily over UDP but can also be transported over TCP, 
using the default port number 5060. 
Telnet
Telnet is the login and terminal emulation protocol common on the Internet and in 
UNIX environments. It operates over TCP/IP networks. Its primary function is to 
allow users to log into remote host systems. Telnet uses TCP port 23.