[Description] The CCXML document disconnects an active call. [End State] DISCONNECTED [Event] 
connection.disconnected
c o n n e c t i o n . p r o g r e s s i n g
c o n n e c t i o n . s i g n a l
c o n n e c t i o n . r e d i r e c t e d
c o n n e c t i o n . d i s c o n n e c t e d
c o n n e c t i o n . m e r g e d
e r r o r . c o n n e c t i o n