Solved Problem does not hear anything with calls via gsm gateway

[rsamaniego]

hI, I deployed the 3CX V15.5.5 on a machine with Windows 10 with firewall and antivirus disabled.
I have provisioned several AAstra 6730i phones and calls between them are set and heard perfectly.
I configured a topex gsm gateway with 2 sim by following these steps:
Https://www.3cx.com/blog/docs/topex-gsm-gateway/

It turns out that calls through the gateway are set but nothing is heard (they are both on the Lan)

The firewall test gives me the following:
•resolving ‘stun-eu.3cx.com’… done
•resolving ‘stun2.3cx.com’… done
•resolving ‘stun3.3cx.com’… done
•resolving ‘sip-alg-detector.3cx.com’… done
•testing 3CX SIP Server… failed (How to resolve?)◦stopping service… done
◦detecting SIP ALG… not detected
◦testing port 5060… full cone test failed (How to resolve?)
◦starting service… done

•testing 3CX Tunneling Proxy… failed (How to resolve?)◦stopping service… done
◦testing port 5090… full cone test failed (How to resolve?)
◦starting service… done

•testing 3CX Media Server… canceled◦stopping service… done
◦testing ports [9000..9255]… canceledtesting port 9000… full cone test failed (How to resolve?)
testing port 9001… full cone test failed (How to resolve?)
testing port 9002… full cone test failed (How to resolve?)
testing port 9003… full cone test failed (How to resolve?)
testing port 9004… full cone test failed (How to resolve?)
testing port 9005… full cone test failed (How to resolve?)
testing port 9006… full cone test failed (How to resolve?)
testing port 9007… full cone test failed (How to resolve?)
testing port 9008… full cone test failed (How to resolve?)
testing port 9009… full cone test failed (How to resolve?)
testing port 9010… full cone test failed (How to resolve?)
testing port 9011… full cone test failed (How to resolve?)
testing port 9012… full cone test failed (How to resolve?)
testing port 9013… full cone test failed (How to resolve?)
testing port 9014… full cone test failed (How to resolve?)
testing port 9015… full cone test failed (How to resolve?)
testing port 9016… full cone test failed (How to resolve?)
testing port 9017… full cone test failed (How to resolve?)
testing port 9018… full cone test failed (How to resolve?)
testing port 9019… full cone test failed (How to resolve?)
testing port 9020… full cone test failed (How to resolve?)
testing port 9021… full cone test failed (How to resolve?)
testing port 9022… full cone test failed (How to resolve?)

THANKS

 

[YiannisH_3CX]

Hello @rsamaniego

It looks like the ports are not correctly forwarded on the firewall so if RTP ports are failing then no audio can pass. You need to forward the required ports on your firewall so that the firewall checker is successful.
https://www.3cx.com/3cxacademy/videos/basic/nat-port-forwarding/

 

[rsamaniego]

Why the firewall? The communication does not go through the firewall because the gsm gateway and the 3cx server are on the same network (Lan) only firewall of windows and it´s disabled.

Anyway I have reviewed the configuration of the firewall of the wan and is as follows

Ipfija <-> ip_lan_3cx

443 TCP
80 TCP
5090 UDP and TCP
5060 UDP and TCP
5061 TCP
5000-5001 TCP
9000-9500 UDP

And IOS and Android devices are well provisioned.

thanks.

 

[rsamaniego]

Solved, the server 3cx had two fixed ips of different lan and the firewall blocked the communication.