1)   ManageEngine ServiceDesk Plus 7.5
ManageEngine ServiceDesk Plus is a web based, easy to use Help Desk and Asset Mgmt software whose features include software license tracking, contract mgmt, purchase mgmt & knowledge mgmt functionalities. ITIL ready version is also available
Help Desk, ITIL help desk, ITIL, Service Desk, Asset Management, Trouble Ticketing, Helpdesk Software, SLA Management, Contract Management, Purchase Order Management,

 2)   SupportCalls with Outlook 2.4
An ITIL guided, helpdesk system for team to log, collaborate and analyze support cases in Outlook with Exchange. Auto-process incoming support requests, send automated emails/SMS, web UI for technicians and end-users, KB, SLA, statistics & reporting.
Helpdesk, Service desk, CRM, Customer Service, SLA, ITIL, Service Level Agreements, SMS, Skype, Email monitoring,