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Phone Adapter with 2 Ports for Voice-over-IP
17
Appendix A: Troubleshooting
Common Problems and Solutions
8. Repeat steps 5-7 until you have entered all four port ranges for the Phone Adapter.
9. Check the Enable option for the port services you want to use.
10. When you have completed the configuration, click the Save Settings button.
2. When I make a telephone call, the call doesn’t go through; instead, I hear a fast busy signal.
Go through this checklist until your problem is solved:
• Follow these instructions to reboot your cable or DSL modem, Phone Adapter, and router:
1. Power off your cable or DSL modem by unplugging its power adapter.
2. Power off the router by unplugging its power adapter.
3. Power off the Phone Adapter by unplugging its power adapter.
4. Wait two minutes, and then power on your cable or DSL modem by plugging its power adapter into
an electrical outlet.
Application Start and End Protocol IP Address Enable
Internet phone 1 5060 to 5061 UDP (IP address of
Phone Adapter)
X
Internet phone 2 53 to 53 UDP (IP address of
Phone Adapter)
X
Internet phone 3 69 to 69 UDP (IP address of
Phone Adapter)
X
Internet phone 4 10000 to 20000 UDP (IP address of
Phone Adapter)
X