Appendix A Troubleshooting 41
Appendix A: Troubleshooting
Problems of Configuration
y
How do I know my configuration is successful?
After you complete the configuration, you will see the LED of PWR is on; MODE is red and blinking; LINK is
on.
y
Do I need a real IP address to configure my IP1200C?
Either real or private IP address can be assigned to IP1200C without the necessary to do the port mapping.
However it is recommended you assign a real IP address to your IP1200C.
y
If I use dial-up DSL and obtain a dynamic IP address, what I should do?
Some broadband operators provide PPPoE connections with their subscribers. You can install a NAT router
and assign a static private IP address to IP1200C.
y
If there is a DHCP on the LAN, what I should do?
IP1200C supports DHCP function. If there is a DHCP server on your network environment, simply go to
DHCP setup item and enable this function.
y
What kind of network interface can I equip my IP1200C with?
IP1200C provides voice communications over broadband users. It supports Ethernet interface from Leased
Line, xDSL and Cable Modem.
y
If I have a PBX in my office, can I share the IP1200C so that everyone can use it?
IP1200C is designed for every size enterprises. You can connect the FXS ports to the trunk side of a PBX or the
FXO ports to the extension side of a PBX. This application allows all extensions to access IP1200C.
Problems of Making Internet Phone Calls
y
Can I use IP1200C to call other DSG VoIP product such as IPStar, InterStar or InterPhone?
IP1200C is a tailored version for Cyber Café operators providing Device-to-Phone service. If you are an
enterprise user ode allowing you to call regular phone numbers in the world. The Device-to-Device mode is
supported by DSG IP1200 or other DSG VoIP products.
y
If the receiver is not equipped with any VoIP product, can I still use my IP1200C to make phone calls?
DSG has established a global Internet Telephony Network which routes Internet phone calls to and from any
regular PSTN telephone. After you apply the services from DSG ITSP distributors, you will be given calling
points. With valid calling points in your IP1200C, you can make Internet phone calls to any regular telephony
users.
y
Where can I purchase calling points?
Please refer to your local distributor or send a mail to sales@dsg.com.tw for more information.
y
Why I cannot make an Internet phone call to a regular telephone?
Make sure you have valid calling points in your Device ID Account.
y
I have calling points in my IP1200C, why I still cannot make Device-to-Phone calls?
Check the following setup items are correct: Long Distance Code, International Access Code and Country
Code.
y
Why does it take so long to connect to the remote party?
The Internet quality directly affects the quality and connection speed of Internet phone calls. Check your
Internet condition. Your DNS setting also affects your time of finding servers and remote parties.
y
Why the call cannot release the line after I hang up the handset?
Summary of Contents for IP1200C
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