diff --git a/sys/netisdn/i4b_tel.c b/sys/netisdn/i4b_tel.c
index e098f3501789..2da8c4d6e930 100644
--- a/sys/netisdn/i4b_tel.c
+++ b/sys/netisdn/i4b_tel.c
@@ -27,7 +27,7 @@
  *	i4b_tel.c - device driver for ISDN telephony
  *	--------------------------------------------
  *
- *	$Id: i4b_tel.c,v 1.5 2001/11/13 01:06:23 lukem Exp $
+ *	$Id: i4b_tel.c,v 1.6 2002/01/27 11:42:13 martin Exp $
  *
  * $FreeBSD$
  *
@@ -36,7 +36,7 @@
  *---------------------------------------------------------------------------*/
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: i4b_tel.c,v 1.5 2001/11/13 01:06:23 lukem Exp $");
+__KERNEL_RCSID(0, "$NetBSD: i4b_tel.c,v 1.6 2002/01/27 11:42:13 martin Exp $");
 
 #include "i4btel.h"
 
@@ -567,9 +567,9 @@ i4btelread(dev_t dev, struct uio *uio, int ioflag)
 	if(func == FUNCTEL)
 	{
 		s = splnet();
-		while(IF_QEMPTY(sc->isdn_linktab->rx_queue) &&
-			(sc->devstate & ST_ISOPEN)          &&
-			(sc->devstate & ST_CONNECTED))		
+		while((sc->devstate & ST_ISOPEN)          &&
+		      (sc->devstate & ST_CONNECTED) &&
+		      IF_QEMPTY(sc->isdn_linktab->rx_queue))		
 		{
 			sc->devstate |= ST_RDWAITDATA;