You do not need to enable Telemetry to get alerts from iDRAC. To enable alert from iDRAC you need to set below attribute "IPMILan.1.AlertEnable": "Enabled" Currently there is no direct URI in redfish where you can can configure individual alerts. To set individual alerts you can use either racadm or Server Configuration Profile feature to configure alerts.  You can find more details on server configuration profile from below link.  [URL]  You can use redfish to export or import server configuration profile. Refer below link with details on same. [URL] 
Hi all, I am referencing this document for IDRAC9 rest api: iDRAC9 Redfish API Guide - Firmware version: 4.20.20.20 However, I could not find any api calls in this doc to configure remote syslog server on the IDRAC or how to enable alerting and configure them. Is this the correct document for this?  Any advise is helpful.  Thanks Kelvin Wong
IDRA9 Series 4 REST API to configure remote syslog and enable alert 
configuration