ZyXEL Communications P-661H Series - Manual (Page 73)

P-661H/HW Series User’s Guide
Chapter 3 Wizards 73
To access this wizard, open the web configurator (see Section 2.2 on page 45 ) and click
BANDWIDTH MANAGEMENT SETUP in the wizard main screen.
3.3.1 Screen 1
Activate bandwidth management and select to allocate bandwidth to packets based on the
services.
Figure 34 Bandwidth Management Wizard: General Information
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.
TFTP Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP, but
uses the UDP (User Datagram Protocol) rather than TCP (Transmission Control
Protocol).
WWW The World Wide Web (WWW) is an Internet system to distribute graphical, hyper-
linked information, based on Hyper Text Transfer Protocol (HTTP) - a client/server
protocol for the World Wide Web. The Web is not synonymous with the Internet;
rather, it is just one service on the Internet. Other services on the Internet include
Internet Relay Chat and Newsgroups. The Web is accessed through use of a
browser.
Table 21 Media Bandwidth Management Setup: Services (continued)
SERVICE DESCRIPTION