trixbox CE is an easy to install, VOIP phone system based on the Asterisk PBX. trixbox is designed for home or office use. trixbox CE includes CentOS linux, mysql, and all the tools needed to run a business quality phone system. (formerly asterisk@home)
SolarWinds Server & Application Monitor allows you to monitor your hybrid IT applications and systems. Monitor Microsoft® Office 365 Exchange side by side on your on-premises Exchange server and other applications. Check, track, and report on O365 user/shared mailbox growth, users over quota, archived mailboxes, inactive mailboxes, mobile device, mailbox groups, and more. You can also monitor Microsoft portal access to help ensure you’re meeting your SLAs.