When working with telecom service providers, issues may occasionally arise. For example, the provider's server might become unresponsive or unavailable. This article provides a mechanism for notifying the system administrator via email.
To enable notifications, you will need to configure the SMTP client. See instructions in the section "Mail and Notifications".
Create a new "Dialplan Application".
Enter a name (e.g., Blacklist), a short number for the application (e.g., 99), and select "Code Type" - "PHP AGI Script".
Go to the "Program Code" tab:
Insert the following code:
Save the changes and copy the dialplan application identifier from the browser's address bar. It will look like "DIALPLAN-APP-CF967EE0".
Go to System → Customizing System Files and open the file /var/spool/cron/crontabs/root for editing.
Select the mode "Append to the end of the file", and in the black editing field at the bottom, insert the following code:
Adjust the file name according to your dialplan application identifier "DIALPLAN-APP-CF967EE0
Save the changes.
You're done!