Net.pixelinstrument.sla is a project mainly written in PHP, it's free.
Copyright (C) 2011 Davide Cassenti http://davide.cassenti.it/
The plugin allows to manage the SLA (response time) of the tickets, based on the customer's type. The settings allow to decide, for each type of customer, what is the limit in days or business days to reply.
A class PiSlaUtils
is provided in order to allow external plugins to use these information.
git clone git://github.com/cerb5-plugins/net.pixelinstrument.sla.git
This plugin was developed by Davide Cassenti.
GPLv3 http://www.gnu.org/licenses/gpl-3.0.txt