PMG5318-B20B User’s Guide
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H A P T E R
1
Introduction
The PMG5318-B20B combines a fiber optic (GPON) router with a built-in switch. Its voice over IP
(VoIP) capabilities allow you to use a traditional analog telephone to make Internet phone calls. The
GPON Device connects to the ISP’s OLT (Optical Line Terminal).
1.1 Managing the GPON Device
Use the GPON Device’s built-in Web Configurator to manage it. You can connect to it using a web
browser. See
for details.
1.2 Good Habits for Managing the GPON Device
Do the following things regularly to make the GPON Device more secure and to manage the GPON
Device more effectively.
• Change the password. Use a password that’s not easy to guess and that consists of different
types of characters, such as numbers and letters.
• Write down the password and put it in a safe place.
• Back up the configuration (and make sure you know how to restore it). Restoring an earlier
working configuration may be useful if the device becomes unstable or even crashes. If you
forget your password, you will have to reset the GPON Device to its factory default settings. If
you backed up an earlier configuration file, you would not have to totally re-configure the GPON
Device. You could simply restore your last configuration.
1.3 Applications for the GPON Device
Here are some example uses for which the GPON Device is well suited.
1.3.1 Triple Play
The ISP may provide “triple play” service to the GPON Device. This allows you to take advantage of
such features as broadband Internet access, Voice over IP telephony, and streaming video/audio
media, all at the same time with no noticeable loss in bandwidth.
