To see how the application works we recommend you to use our IAX softphone Idefisk. You could download it from here. Please also read our tutorial to learn how to configure it to work with Asterisk PBX.
Asterisk PBX configurations
We need to create one user in the iax.conf file. This is because we are going to use the IAX2 protocol. If you want to use other protocol, such as SIP or MGCP, you have to do the configurations below respectively in sip.conf or mgcp.conf.
So, we have registered the user user1
Type=friend means that this user can make and receive calls. Host=dynamic means that the IP is not static but dynamic through a DHCP server. Allow=all means that the line which this user will use, could support all audio codecs. Context=test - this shows that this user is working with the extensions in this context of the configuration file extensions.conf.
In this example, when somebody dials 100, the call will be answered by the Answer application.
The next executed extension will be the one, which contains the GoTo application. As arguments in its brackets we have set the following - |s|1. This will redirect the call to the special extension s with priority 1 in the same context test.
So now the call is in a small IVR menu and the first executed application will be the one, which will set the response timeout.
For the purpose we need the Set application and we will type as arguments in its brackets the following: TIMEOUT(response)=20. This will set the response timeout to 20 seconds. By default it is 15. So the caller has maximum time of 20 seconds to choose which section of the menu he/she wants to visit and to press the corresponding number from the keypad. If he/she did not manage to enter this number within 20 seconds then the system will try to execute the timeout extension (t extension). If such extension does not exist - the line will be hung up.
Next thing to be executed is the Background application. Thanks to it, we will play a sound message to the caller. Something like this: Thank you for using our services, please press one for connecting with operator, two for.....etc.
If the caller press 1, then thanks to the Dial application, the call will be connected to the user user1 through the IAX2 channel.
If the caller press 2, then thanks to the Playback application we will play to him/her a goodbye message.
NOTE: The function TIMEOUT(response) is case sensitive. You always have to write it in your dialplans as you see it in our tutorial.
In order to be sure that the Asterisk PBX will hang up the line, when the conversation is over, it is a good idea to use the Hangup application.
2. Screenshots of what you could see on the CLI of the Asterisk PBX
3. Additional information
For more information about extensions.conf you can check here.
For more information about iax.conf you can check here.
This application is tested with our IAX softphone Idefisk. You can download it from here. For more information about this softphone please read our tutorial.
If you would like to test this application with the SIP channel you can read our tutorials about the SIP Softphones to learn how to configure them to work with Asterisk PBX