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VoIP phone cannot initiate outgoing call with R7000 Router Installed
I have had my Nighthawk R7000 Router installed and set up, it works fine except my SIP-based VoIP phone cannot make any outgoing calls anymore (it can still receive calls properly). The error code I ...
Hi mtlviya,
Set the VoIP's IP in DMZ mode.
Hi mtlviya,
Check this firmware version of the router.
https://kb.netgear.com/000039940/R7000-Firmware-Version-1-0-9-6
Hi mtlviya,
Set the VoIP's IP in DMZ mode.
Hi mtlviya,
We’d greatly appreciate hearing your feedback letting us know if you need further assistance.
Hi JamesGL,
Thanks for your prompt help.
After configuring the VoIP phone as the Default DMZ Server, both the incoming calls to the VoIP phone and outgoing calls from the VoIP phone work now.
I will do more tests in the several upcoming days to see if it keeps working and if it works in other scenarios, I will have the results posted.
According to the R7000 User Manual (May of 2017), page 119, as below.
"DMZ servers pose a security risk. A computer designated as the default DMZ server loses much of the protection of the firewall and is exposed to exploits from the Internet. If compromised, the DMZ server computer can be used to attack other computers on your network"
Since what I have exposed is just a VoIP phone, I guess the risk is very limited, right?
Thanks again for your help.
Hi mtlviya,
Yes that is correct since this is not a computer that can be used to access local devices.