3CX

3CX is a hosted PBX provider. You can connect your 3CX account to jambonz by creating a SIP trunk on 3CX and a Carrier on jambonz.

3CX configuration

Create a SIP trunk

On the 3CX side, you will need to create a SIP trunk. As shown in the image below, you will first create the trunk, and then on the “General” tab, you will enter the sip domain of your jambonz account. If you are using jambonz.cloud this will be your the sip subdomain you chose when you signed up for jambonz.cloud.

If you are using a self-hosted jambonz platform, you can either enter the public IP of the jambonz SBC SIP server or, if you have assigned a subdomain for sip signaling you can use that.

You will enter this value in both the “Registrar..” and the “Outbound Proxy” fields as show below.

For the “Authentication” tab, use either IP-based authentication.

Next, go to the Options tab and check to allow both inbound and outbound calls, disallowing video calls. Also check “PBX delivers audio” under the “Advanced” section.

For codecs, make sure to select both G.711 ulaw and alaw.

Now go to the DIDs tab and add the phone numbers that you will see on incoming calls from jambonz.

Now that the SIP trunk is created, we need to instruct 3CX when to send calls out on this trunk, and how to handle incoming calls arriving on this trunk from jambonz.

Create an outbound rule

First, create an outbound rule. In the example below, we are going to route any call that the PBX receives, which starts with 901 to jambonz.

Create an inbound rule

Next, creat an inbound rule. In the example below, we’ve created routing for incoming calls to a specific number such that they are forwarded on to a different outside number.

jambonz configuration

On the jambonz side, you will create a carrier to represent the 3CX SIP trunk.

Add a sip gateway for the carrier that you created and enter the IP address of the 3CX server. Check both the inbound and outbound boxes and save the carrier.

Finally, add phone numbers in jambonz as described here and set up the application routing that you need.