Appendix A: Common Problem And Solutions - NetComm V24W User Manual

Appendix A: Common Problem And
Solutions
This appendix provides solutions to problems that may occur during the installation and operation
of the V24W IP Phone. Read the description below to solve your problems.
1. 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, IP Phone, 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 IP Phone by pressing and holding down the Power
4. Wait 30 seconds, and then power on your cable or DSL modem by
5. Wait 30 seconds. Power on the router by plugging its power adapter
6. Wait 10 seconds. Power on the IP Phone by pressing and holding
7. Reboot one of your networked computers, and check for an active
8. Pick up the IP Phone and try your call again.
•
Set up port forwarding on your router. You must specify that four port ranges be
forwarded to the IP address of the IP Phone. These four port ranges are as
follows: 5060-5061 (UDP), 53-53 (UDP), 69-69 (UDP), and 10000-20000 (UDP).
If you have a non- router, refer to its documentation for instructions.
If you have a router, then follow these instructions:
1. On one of your networked computers, open your web browser.
2. Access the Router's Web-based Utility by going to http://192.168.1.1 or
3. A login screen will appear. Leave the User Name field blank. Enter the
4. Click the Applications & Gaming tab, and then click the Port Range
5. For each port range you must specify, enter a different name in the
6. Select the protocol you will be using, UDP.
7. Enter the IP address of the IP Phone. For example, if the IP Phone's IP
8. Repeat steps 5-7 until you have entered all four port ranges for the IP
Application
Enable Internet Phone 1
X Internet Phone 2
X Internet Phone 3
X Internet Phone 4
YML873 V24W User Guide - 36
button for two seconds.
plugging its power adapter into an electrical outlet.
into an electrical outlet.
down the Power button for two seconds.
Internet connection.
the IP address of the Router.
Router's password (the default is admin) in the Password field. Then
click the OK button.
Forwarding tab.
Application field. Then enter the number or range of external port(s) used
by the IP Phone.
address is 192.168.1.100, you would enter 100 in the field provided.
Phone.
Start and End
5060 to 5061
53 to 53
69 to 69
10000 to 20000
NetComm VoIP WiFi Phone V24W User Guide
Protocol IP Address
UDP IP address of IP Phone
UDP IP address of IP Phone
UDP IP address of IP Phone
UDP IP address of IP Phone