ZyXEL Communications P-2602R-D1A Support Notes page 4

Prestige 2602R-D1A Support Notes
How does e-mail work through the Prestige? .................................................................................................................. 137
Is it possible to access a server running behind SUA from the outside Internet? If possible, how? .................................. 137
What DHCP capability does the Prestige support? ........................................................................................................... 137
How do I used the reset button, more over what field of parameter will be reset by reset button? ................................ 137
What network interface does the new Prestige series support? ...................................................................................... 138
How does the Prestige support TFTP? .............................................................................................................................. 138
Can the Prestige support TFTP over WAN? ....................................................................................................................... 138
How fast can the data go? ................................................................................................................................................ 138
What is Multi-NAT? .......................................................................................................................................................... 139
When do I need Multi-NAT? .............................................................................................................................................. 139
What IP/Port mapping does Multi-NAT support? ............................................................................................................. 140
What is the difference between SUA and Multi-NAT? ...................................................................................................... 141
What is BOOTP/DHCP? ..................................................................................................................................................... 141
What is DDNS? ................................................................................................................................................................. 141
When do I need DDNS service? ......................................................................................................................................... 142
What DDNS servers does the Prestige support? ............................................................................................................... 142
What is DDNS wildcard? ................................................................................................................................................... 142
Does the Prestige support DDNS wildcard? ...................................................................................................................... 142
Can the Prestige SUA handle IPsec packets sent by the VPN gateway behind Prestige? .................................................. 142
How do I setup my Prestige for routing IPsec packets over SUA? ..................................................................................... 143
V IP FAQ ................................................................................................................................................................................ 143
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What is Voice over IP? ...................................................................................................................................................... 143
How does Voice over IP work? .......................................................................................................................................... 143
Why use VoIP? .................................................................................................................................................................. 143
What is the relationship between codec and VoIP? ......................................................................................................... 144
What advantage does Voice over IP can provide? ........................................................................................................... 144
What is the difference between H.323 and SIP? .............................................................................................................. 144
Can H.323 and SIP interoperate with one another? ......................................................................................................... 144
What is voice quality? ...................................................................................................................................................... 144
How are voice quality normally rated?............................................................................................................................. 144
What is codec? ................................................................................................................................................................. 145
What is the relation of codec and VoIP? .......................................................................................................................... 145
What codec does Prestige support? ................................................................................................................................. 145
Which codec should I choose? .......................................................................................................................................... 145
What do I need in order to use SIP? ................................................................................................................................. 145
Unable to register with the SIP server? ............................................................................................................................ 146
I can register but can not establish a call? ....................................................................................................................... 146
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