SIPp
It would be nice if we have the SIPp package for AL.
SIPp is a free Open Source test tool / traffic generator for the SIP protocol.
WebSite: http://sipp.sourceforge.net/
Source Code: http://sourceforge.net/projects/sipp/files/
(from redmine: issue id 2970, created on 2014-05-28, closed on 2014-05-29)