Solved 3CX V15.5 not able to route calls

[Anthony300077]

out going calls are working
When I dial in myself, I can hear the AA but when I dial the extensions, it is not responding, I keep on pressing the extension number but 3CX won't respond, it just keep on playing the AA and won't do the transfer.
It was working fine before I reset the router recently.

Ports
UDP 9000-10999 are forwarded
5060, 5061, 5090 are forwarded as well

Anyone have any idea what I did wrong ?

 

[pact]

Hi @Anthony300077 ,

Does the Inbuilt 3CX Firewall checker pass?

You say 'dial the extensions', you are referring to typing the DTMF tone in when the Digital Receptionist picks up the call?

 

[Anthony300077]

Hi Thanks for replying,
I am very new to 3CX, not sure where I can find the firewall checker

Yes, when the digital receptionist picks up the call it will say "For Sales dial 1, for xxx dial 2 ... etc" I dial all the numbers over and over without any response, the phone call never gets redirected

 

[pact]

Hi @Anthony300077

Please see the following guide to help you run the Firewall checker.

https://www.3cx.com/docs/troubleshooting-firewall-checker/#h.l4e88j91w9ei

 

[Anthony300077]

Everything looks good except this
detecting SIP ALG... detected (received def1ec19 ≠ 608358c5)

 

[pact]

Hi @Anthony300077

Ok excellent, please investigate on your Firewall/Router to identify if SIP ALG is enabled and then disable it and re-run the firewall test.

 

[Anthony300077]

Problem Solved, Thanks a lot

 

[YiannisH_3CX]

Glad to see the issue has been resolved