<p><strong>Service - </strong><strong>contact groups</strong></p>
<p>This is a list of the <em>short names</em> of the contact groups that should be notified whenever there are problems (or recoveries) with this service. Multiple contact groups should be separated by commas. You must specify at least one contact or contact group in each service definition.</p>
<p><em>Parameter name:</em> contact_groups<br> <em>Required:</em> yes (no, if a contact is defined)</p>