Solved Synway SMG1004B-4O fxo gateway as SIP trunk

[Jake IV]

I know this hardware is not specifically supported. But has anyone been able to get it to work as a 'Generic Gateway Device' and cares to give me some pointers?
Outgoing calls IP Phone => 3CX => Gateway => PSTN are working, but incoming calls PSTN => Gateway => 3CX => IP Phone give me a headache.

 

[cobaltit]

https://www.3cx.com/docs/source-identification-issues/

The above article describes how calls are identified by 3CX.

https://www.3cx.com/3cxacademy/videos/advanced/basic-troubleshooting/

Video training on how to troubleshoot and covers logging and wireshark to look at what is coming in to 3CX from the gateway

 

[leejor]

First thing to do is to check (Activity Log, Verbose) and see if the calls are making it to 3CX, and if so, what is happening after that..

In a nutshell, when a PSTN gateway sends a call to 3CX it is usually set to "forward" to the trunk number, and set to one stage dialing. If you don't see a log, it may be because the gateway is not set to send to the correct destination ( IP and PORT).
I'm assuming that both the gateway and 3CX are on the same network.

 

[Jake IV]

Got it to work. Had to contact Synway support. Their document “How to configure Synway Gateway for a connection with 3CX Phone System” is outdated and lacks critical information. Their hardware provides excellent call quality (so far).

 

[cobaltit]

I've never heard of Synway but it's not like gateways are cutting edge technology. I've used a number of different products and they all work fine, you just have to make your own templates/adjustments. The 3CX supported ones just work out of the box.