Changes since: PhoneBOX (General) 3.8.1.22
FIX - Calls left ringing after ending call made from a Cisco SPA handset
FIX - SDP comparison failing when optional number of channel parameter included in media description
FIX - Dial using handset buttons always requires the provider to use G711U
FIX - SQL part of installer needs to be able to use TLS 1.2
FIX - Winner alerts issue
FIX - Incoming calls answered to handsets are overriding provider codec list with generic list
FIX - Dolphin installer issues with client / as2 updaters
FIX - Skype codec can get stuck in a ringing out state if dial fails
