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Exactly how to Set Up an External Number for 3CX Teleconference

3CX is a preferred VoIP communication system that provides a range of attributes to services, consisting of seminar calling. Teleconference enable multiple individuals to join a conversation from various places. While 3CX supplies options to add inner expansions to conference calls, it’s additionally feasible to consist of individuals with exterior numbers. In this article, we’ll discuss how to set up an outside number for 3CX teleconference.

Action 1: Configure the SIP Trunk

The primary step is to configure a SIP trunk for the outside number. A SIP trunk serves as a digital telephone line that attaches your PBX system to the outside world. Get in touch with your VoIP carrier or telecommunication solution to obtain the needed information, consisting of the SIP trunk settings.

As soon as you have the SIP trunk settings, most likely to the 3CX Monitoring Console and navigate to “SIP Trunks”. Click “Add SIP Trunk” and get in the required info, such as the provider name, SIP server details, and authentication credentials. Save the setups when you’re done.

Step 2: Develop an Incoming Regulation

Next, you require to produce an inbound rule to manage inbound phone calls from the external number. In the 3CX Monitoring Console, go to “Inbound Policy” and click “Add Inbound Regulation”. Provide the regulation a name and select the SIP trunk you set up in the previous step.

Under “Phone Call To Numbers Beginning With”, get in the number or number pattern you wish to connect with the teleconference. For instance, if you intend to use a certain area code for your teleconference, get in that code right here. Conserve the guideline when you’re ended up.

Step 3: Establish a Meeting Expansion

Now that you have the outside number configured and the incoming guideline in location, the following step is to set up a seminar extension in 3CX. Go to “Expansions” in the Monitoring Console and click on “Add Extension”. Pick the expansion type as “Conference” and give it a name.

Under “This expansion can be reached”, select “Via an external number” and select the incoming policy you developed previously. Conserve the expansion when you’re done.

Step 4: Examine the Arrangement

As soon as you’ve completed the above steps, it’s necessary to test the setup to ensure every little thing is working appropriately. Dial the external number you related to the conference calls and verify that you can join the seminar expansion successfully. Invite others to join the telephone call from their outside numbers also to guarantee smooth connectivity.


Setting up an exterior number for 3CX conference calls enables participants outside your company to join essential discussions. By configuring a SIP trunk, creating an inbound rule, and setting up a seminar extension in 3CX, you can easily consist of external numbers and enable seamless communication. Follow the steps mentioned in this post, and you’ll be holding successful teleconference in no time!

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