ZyXEL Communications P-2602HWNLI 用户手册

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页码 8
P-2602HWNLI Quick Start Guide
8
PSTN (or ISDN) Line Pre-fix Number: If you want to make a 
regular phone call after one of your VoIP accounts has been 
registered you have to dial this number before you dial the 
phone number.
Relay to PSTN (or ISDN)  Line: Enter phone numbers for 
regular phone calls (that do not use the Internet) that you 
always want to dial without the prefix number. For example, 
enter emergency phone numbers here.
Click Apply.
2.3 Make Calls Through the Internet
When a PHONE light turns on, your SIP account is registered 
successfully. Dial a numerical SIP number (like “12345” for example) on your phone’s keypad. Use your voice 
service provider’s dialing plan to make calls through the Internet to regular telephone numbers. See your 
User’s Guide if you need to make peer-to-peer VoIP calls or calls to SIP numbers that use letters.
3 Troubleshooting
If you cannot access the Internet, follow these steps.
Check the device’s lights. If they are different from what is described in 
, make sure the 
connections are correct. If the lights are still different, turn off the device, wait a few seconds, and turn it on 
again.
Follow the steps in 
 again. Make sure you enter the correct information. For example, if your 
account has a user name and password, make sure you type it correctly. In addition, if you are not sure 
which encapsulation your ISP uses, contact your ISP.
If you are using a new Internet account, contact your ISP to make sure it is active.
If you still have problems, see Troubleshooting in the User’s Guide.
If you can access the Internet, but you cannot make calls through the Internet, follow these steps.
Make sure the VOICE OVER INTERNET SETUP wizard screens are properly configured (see 
). 
One of the PHONE lights should come on. Make sure that your telephone is connected to the 
corresponding PHONE or ISDN PHONE port.
You can also check the VoIP status in the Status screen. 
Viewing Your Product’s Certifications
Go to 
www.zyxel.com
.
Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.
Select the certification you wish to view from this page.