Add undocumented variables to phoneprov.conf.sample

(closes issue #18107)
Reported by: lathama
Patches:
      phoneprov.conf.sample.diff uploaded by lathama (license 1028)

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.2@291280 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/phoneprov.conf.sample

@@ -36,11 +36,25 @@ default_profile=polycom ; The default profile to use if none specified in users.
 ;   CALLERID (cid_number)
 ;   VOCIEMAIL_EXTEN (vmexten)
 ;   EXTENSION_LENGTH (localextenlength)
+;   LINE
+;   LINEKEYS
 
 ; Built-in variables and the options in phoneprov.conf that they come from
 ;   SERVER (server)
 ;   SERVER_PORT (serverport)
 
+
+; Built-in variables for managing timezones and daylight savings time.
+;   TZOFFSET
+;   DST_ENABLE
+;   DST_START_MONTH
+;   DST_START_MDAY
+;   DST_START_HOUR
+;   DST_END_MONTH
+;   DST_END_MDAY
+;   DST_END_HOUR
+;   TIMEZONE
+
 [polycom]
 staticdir => configs/ ; Sub directory of AST_DATA_DIR/phoneprov that static files reside
                       ; in. This allows a request to /phoneprov/sip.cfg to pull the file