I had to build a very custom ticketing system and associated helpdesk for a IIG company year ago. I started working with 1.7.3,Finally customized and added so much new features that later I planned to release my works titled as a crm, As my first work was, Current base features are:# trouble ticket management: create, discuss, escalate# client management: add client accounts. Complete client portal with login# crm users and access levels: admin, staff/executives, managers, engineers# Service order management: create, manage, escalate, report: current Service order form is designed for IIG/IGW companies# Admin report/overview page# user groups and departmentsSource code repo is here: https://github.com/minhaj-vimmaniac/IIG-CRMwill be updated regularly, aiming for a robust and extensive crm