FIX - Prevent get best fit codec using only an HD codec in device invite
FIX - Exception SIP responses during handset placement ('BUSY', 'FORBIDDEN', 'NOT FOUND', 'GONE', 'TERMINATED' and 'NOT ACCEPTABLE HERE') are incorrectly leaving call session stuck on handset device and means it can never be used again until server restart
FIX - Trim carriage return and line feed characters when checking SDP during handset audio initialisation routine
