Merged revisions 155324 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

........
  r155324 | tilghman | 2008-11-07 14:13:32 -0600 (Fri, 07 Nov 2008) | 7 lines
  
  Send call release with unallocated cause instead of normal call clearing, when
  invalid extension is called.
  (closes issue #13408)
   Reported by: adomjan
   Patches: 
         chan_dahdi.c-ss7-unallocated-2 uploaded by adomjan (license 487)
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.1@155325 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_dahdi.c

@@ -9779,7 +9779,8 @@ static void *ss7_linkset(void *data)
 						ss7_start_call(p, linkset);
 				} else {
 					ast_debug(1, "Call on CIC for unconfigured extension %s\n", p->exten);
-					isup_rel(ss7, e->iam.call, -1);
+					p->alreadyhungup = 1;
+					isup_rel(ss7, e->iam.call, AST_CAUSE_UNALLOCATED);
 				}
 				ast_mutex_unlock(&p->lock);
 				break;