We are a large academy sponsor and the help desk would be used for central services staff. As for requirements we have many that we deem as 'essential'. We have put together a list of requirements we would desire from a help desk.
-Web-based interface
-Smartphone access (iOS, Android)
-Centrally hostable
-Works cross-browser
-Portal accessible to end users (Should be accessible using latest version -1 and upwards of all common browsers (Internet Explorer, Chrome, Firefox, Safari) with no degradation of service. Should also work on iPad and Android tablet standard browsers.)
-Ability to easily log support calls
-Ability to view and assign calls to other users
-Ability to set specific service levels
-Configurable e-mail triggers
-Multi group call assignment
-Escalation paths
-Audit trail
-Links to Google Apps/Drive
-Ability to attach files
-Ability to produce regular reports
-Automatic creation of assets lists
-Ability to send e-mails from the system on a specific call