Troubleshooting - ZyXEL Communications 802.11g Wireless ADSL2+ 4-port VoIP IAD P-2602HWNLI Quick Start Manual

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.
1 Check the device's lights. If they are different from what is described in
connections are correct. If the lights are still different, turn off the device, wait a few seconds, and turn it on
again.
2 Follow the steps in
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.
3 If you are using a new Internet account, contact your ISP to make sure it is active.
4 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.
1 Make sure the VOICE OVER INTERNET SETUP wizard screens are properly configured (see
2 One of the PHONE lights should come on. Make sure that your telephone is connected to the
corresponding PHONE or ISDN PHONE port.
3 You can also check the VoIP status in the Status screen.
Viewing Your Product's Certifications
1 Go to www.zyxel.com.
2 Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.
3 Select the certification you wish to view from this page.
P-2602HWNLI Quick Start Guide
Section 2 again. Make sure you enter the correct information. For example, if your
Section
8
1, make sure the
Section 2.1).