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Option 1From the Line tab setting, change Nat Mapping Enable to yes.On the SIP tab,
change Substitute VIA Addr to yes, and EXT IP to the WAN IP of your router.
Option 2—You can try to use STUN. STUN does not work with symmetric NAT routers.
Q. How do I troubleshoot dial tone issues?
A. A dial tone signal requires successful registration with the proxy of your service provider.
Registration Status is displayed on the info page of the web GUI.
Complete these steps if you do not have a dial tone:
1.
Check cable connections and verify Internet connectivity.
2.
Reboot the unit.
3.
If the dial tone returns, it's possible the WAN IP changed and the SPA device did not re-
register.
4.
Try to prevent registration expiry conditions less than the default, which is 3600mins.
Q. Do you have forums and discussion groups for SPA products and
troubleshooting? If you do, can I have the web link?
A. There are several forums and discussions groups available, such as:
http://forums.linksys.com
http://www.voxilla.com
http://www.ip-phone-forum.de
http://dslreports.com
Q. I need Sniffer software to capture Ethernet traffic for debugging purposes.
Can you suggest one?
A. There are several free sniffer software applications available on the Internet, such as
WireShark.
Connect your PC and the SPA device to a 10baseT Hub.
Q. Why does the SPA device not dial immediately after I enter my destination
number?
Option1—Press #, or you can change the dialplan so it has the exact pattern of the numbers
you are dial.
Option 2You can also adjust the Interdigit Long Timer or Interdigit Short Timer.The
<Interdigit_Short_Timer> specifies the default maximum time in seconds allowed between
dialed digits, when at least one candidate digit sequence is complete as dialed.The
<Interdigit_Long_Timer> specifies the default maximum time in seconds allowed between
dialed digits, when no candidate digit sequence is as yet complete.
Note: Verify DialPlan parameters for an explanation of candidate digit sequences.
Q. How does a SPA indicate "disconnect" when the FXS port of the device is
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