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Appendix A: Troubleshooting
Common Problems and Solutions
IP Telephony System
Appendix A: Troubleshooting
This appendix provides solutions to problems that may occur during the installation and operation of the IP
Telephony System. Read the description below to solve your problems. If you can't find an answer here, check the
Linksys website at www.linksys.com.
Common Problems and Solutions
1. The System did not automatically assign an extension number to the Linksys SPA-family Internet
phone, and the phone’s Ext LED is yellow instead of green.
Follow these steps:
A. Open the web browser on the administration computer.
B. Enter http://192.168.0.1/admin/router/status.
C. If the phone is on the WAN side, write down the Current IP of the System. (This is the Internet IP address.)
If the phone is on the LAN side, write down the LAN IP Address of the System. (This is the local IP
address.)
D. Access the phone’s Web-based Utility.
E. Make sure the configured proxy server on the phone matches the System’s IP address. (Refer to the
phone’s documentation for details.)
2. The Internet phone can make internal calls to other Internet phones and analog phones; however, it
cannot make external calls.
Check to see if the Internet phone’s line is registered. Follow these steps:
A. Open the web browser on the administration computer.
B. Enter http://192.168.0.1/admin/voice/advanced.
C. On the Voice - Info screen, check to see if the Line 1 Status indicates that the Registration State says,
“Registered.”
D. If it is not registered, then verify that the User ID, Proxy, and Password supplied by your Internet Telephony
Service Provider (ITSP) are valid (these settings are configured on the Line 1 screen).
3. I made a call from an outside line, and I did not hear a ring tone after I entered the extension number.
First, try again and make sure you entered the extension number correctly. If you still do not hear a ring tone,
then follow these steps:
A. Open the web browser on the administration computer.
B. Enter http://192.168.0.1/admin/voice/status.
C. On the PBX Status screen, make sure the Internet phone for that extension number is registered.
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