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Setting up a conference call in Asterisk Confbridge
In this post, I will show you how to set up a simple conference room in Asterisk with the function conf bridge.
- Asterisk 16 or 18
- Default sip accounts
What is a conference call
A conference call is a call with multiple participants. Most commonly, people join conference calls by dialing a shared conference number on their phones.
How to set up a conference in Asterisk confbridge
To be able to use the Asterisk conference call function, we'll need to add a few parameters to our confbridge.conf file. First, let's move to our Asterisk directory and open the confbridge.conf file.
$ cd /etc/asterisk $ vi /confbridge.conf
Now let's add the following parameters to the bottom of our conf bridge file and save it.
# confbridge.conf [admin_user] type=user pin=5555 marked=yes admin=yes music_on_hold_when_empty=yes announce_user_count=yes [default_user] type=user pin=1234 wait_marked=yes end_marked=yes music_on_hold_when_empty=yes announce_user_count=yes [myconferenceroom] type=bridge max_members=10
In this example, we have created a conference room with an administrator and a default user. This is a very basic conference room for asterisk.
Want to tweak your conference a bit more, take a look at this asterisk wiki that shows you all the parameters that you can use within the conf bridge file.
How to set up a conference in Asterisk the dial plan
The next step is to create our asterisk dial plan in our extensions.conf file. Let's first open this file.
$ vi /extensions.conf
Now let's add the administrator dial plan.
# extensions.conf exten => 777,1,Progress() exten => 777,2,Wait(1) exten => 777,3,ConfBridge(1,myconferenceroom,admin_user)
Next is the guest dial plan.
# extensions.conf exten => 666,1,Progress() exten => 666,2,Wait(1) exten => 666,3,ConfBridge(1,myconferenceroom,default_user)
Before we can start testing, we'll need to restart our Asterisk PBX, this can be done with the following command.
$ systemctl restart asterisk
Our dial plan is ready to get tested. Let us know in the comment below how your test went.
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