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Prestige 2302RL Support Notes
All contents copyright (c) 2007 ZyXEL Communications Corporation.
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Is it possible to access a server running behind SUA from the outside
Internet? If possible, how? ......................................................................... 133
What DHCP capability does the Prestige support? .................................... 133
How do I use the reset button? And which parameter will be reset by the
reset button? ............................................................................................... 133
What network interface does the new Prestige series support? ................. 133
Does the Prestige support TFTP? .............................................................. 134
Does the Prestige support TFTP over WAN? ............................................ 134
How fast is the DSL connection? ............................................................... 134
My Prestige cannot obtain a WAN IP address from the ISP to connect to
the Internet, what should I do? ................................................................... 135
What is BOOTP/DHCP?............................................................................ 137
What is DDNS?.......................................................................................... 138
When do I need the DDNS service? .......................................................... 138
What DDNS servers does the Prestige support? ........................................ 138
What is DDNS wildcard? ........................................................................... 138
Does the Prestige support DDNS wildcard? .............................................. 138
Can VPN tunnels still work on a Prestige using SUA? ............................. 139
How do I set up my Prestige to route IPsec packets over SUA? ............... 139
VoIP FAQ ...........................................................................................................139
What is Voice over IP? .............................................................................. 139
How does Voice over IP work? ................................................................. 139
Why use VoIP? .......................................................................................... 140
In addition, it would take a much longer time, more effort and money to
implement new features using circuit switching. Since the IP technology is
a standard and various applications are available, it is easier and more
cost-effective to integrate new services and applications using IP. ........... 140
What is the relationship between codec and VoIP? ................................... 140
What advantage does Voice over IP provide? ........................................... 140
What is the difference between H.323 and SIP? ........................................ 140
Can H.323 and SIP interoperate with each other? ..................................... 140
What is voice quality? ................................................................................ 141
How are voice quality normally rated? ...................................................... 141
What is codec? ........................................................................................... 141
What is the relationship between codec and VoIP? ................................... 141
What codec types does Prestige support? .................................................. 141
Which codec should I choose? ................................................................... 141