Merged revisions 282334 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.8

........
  r282334 | rmudgett | 2010-08-13 18:53:36 -0500 (Fri, 13 Aug 2010) | 6 lines
  
  PRI CCSS may use a stale dial string for the recall dial string.
  
  If an outgoing call negotiates a different B channel than initially
  requested, the saved original dial string was not transferred to the new B
  channel.  CCSS uses that dial string to generate the recall dial string.
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@282335 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -2887,6 +2887,7 @@ static void my_pri_fixup_chans(void *chan_old, void *chan_new)
 
 	/* More stuff to transfer to the new channel. */
 	new_chan->law = old_chan->law;
+	strcpy(new_chan->dialstring, old_chan->dialstring);
 }
 #endif	/* defined(HAVE_PRI) */