for Asterisk to Asterisk exchanges of information. Currently, this includes
both mailbox state and device state information.
+------------------------------------------------------------------------------
+--- Functionality changes from Asterisk 12.8.0 to Asterisk 12.9.0 ------------
+------------------------------------------------------------------------------
+
+AMI
+------------------
+ * "Language" (the default spoken language for the channel) is now included in
+ the standard channel state output for suitable events.
+
+ARI
+------------------
+ * "language" (the default spoken language for the channel) is now included in
+ the standard channel state output for suitable events.
+
------------------------------------------------------------------------------
--- Functionality changes from Asterisk 12.4.0 to Asterisk 12.5.0 ------------
------------------------------------------------------------------------------