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Solved Unable to Receive Incoming call

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Anthony300077

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I recently reset the router, now I am not able to receive phone call, but I am able to call out, I can hear anything, but they are able to hear me.

I've Run Firewall check
  • resolving 'stun.3cx.com'... failed
  • resolving 'stun2.3cx.com'... failed
  • resolving 'stun3.3cx.com'... failed
  • resolving 'sip-alg-detector.3cx.com'... failed
I've opened all the ports, see attached image.
And turn off SIP service port.
But still the same, any help will be greatly appreciated

Edit-----------------------------
I manage to fix it by changing the DNS on the router to 8.8.8.8 and 1.1.1.1
Now the firewall checks out but

detecting SIP ALG... failed

So I am still not able to receive calls
 

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Last edited:
Mentioning the firewall make/model might help..
 
I manage to fix it by changing the DNS on the router to 8.8.8.8 and 1.1.1.1
Now the firewall checks out but

detecting SIP ALG... failed

So I am still not able to receive calls

The model for the firewall in Mikrotik CRS125
 
Thanks for the reply,
I did disable that.

The strange thing is I did multiple firewall test the result all came out different.
Sometimes 5060 port in fine, sometimes it's not.
 
Problem Solved itself ... Thanks for the help guys
 
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