The web interface of 3CX 20 is a bit different than older versions, but the configuration of a beroNet gateway with the IPBX is very similar.
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On this page, you can create the SIP connection between the 3CX and the gateway. A few important informations need to be entered:
- "Registrar/Server/Gateway Hostname or IP": You need to enter here the IP address of your beroNet Gateway
- Main Trunk Number needs to be assigned a value containing at least four digits
In the authentification part we configure the values which the beronet gateways uses to register to the 3cx:
- "Authentification ID" is what we call "user" in the beroNet web interface
- "Authentification Password" is what we call "secret" in the beroNet web interface
Registering the beroNet gateway
On the beroNet gateway go to SIP→SIP and click the Add button. In the pop-up fill out the values 3CX provided for registering a SIP trunk, save and click activate.
Go to the state screen to see if registering was successful.
Create an outbound rule for the gateway, cutting off the first four digits (the main trunk number).
On the beronet gateway configure the inbound and outbound rules in the dialplan.
Known issues with 3cx v20
Especially when using ISDN there seems to be an issue with the 3cx making a SIP call to the gateway and the ringing sound isn't heard.
This is mostly caused by the mixed Progress and Alerting messages passed through from ISDN. If this happens in your environment, this can be addressed by creating a call progress table. For this go to Preferences→Call Progress, and create a SIP→ISDN call progress table and save it.
Now you need to configure it to not pass all the ISDN messages to the calling SIP peer. Configure the SIP response to be 180 on an incoming ISDN ALERTING message.
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