--- chan_dahdi2.c	2010-04-30 13:07:47.152909945 -0500
+++ chan_dahdi.c	2010-04-30 13:07:21.964909630 -0500
@@ -3110,6 +3110,11 @@
 	ast_mutex_lock(&p->lock);
 	ast_copy_string(dest, rdest, sizeof(dest));
 	ast_copy_string(p->dialdest, rdest, sizeof(p->dialdest));
+   c = strchr(dest, '/');
+   if (c){
+      c++;
+      ast_copy_string(p->exten, c,sizeof(p->exten));
+   }
 	if ((ast->_state == AST_STATE_BUSY)) {
 		p->subs[SUB_REAL].needbusy = 1;
 		ast_mutex_unlock(&p->lock);