added fix from #8899

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@51989 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_misdn.c

@@ -2278,9 +2278,11 @@ static int misdn_indication(struct ast_channel *ast, int cond, const void *data,
 		break;
 
 	case AST_CONTROL_HOLD:
+		ast_moh_start(ast,data,ast->musicclass); 
 		chan_misdn_log(1, p->bc->port, " --> *\tHOLD pid:%d\n",p->bc?p->bc->pid:-1);
 		break;
 	case AST_CONTROL_UNHOLD:
+		ast_moh_stop(ast);
 		chan_misdn_log(1, p->bc->port, " --> *\tUNHOLD pid:%d\n",p->bc?p->bc->pid:-1);
 		break;
 	default: