diff --git a/drivers/isdn/hardware/mISDN/app_plci.c b/drivers/isdn/hardware/mISDN/app_plci.c
index 874e8c5..69c1600 100644
--- a/drivers/isdn/hardware/mISDN/app_plci.c
+++ b/drivers/isdn/hardware/mISDN/app_plci.c
@@ -1358,7 +1358,7 @@ PL_l3l4(mISDNif_t *hif, struct sk_buff *skb)
 	capidebug(CAPI_DBG_NCCI_L3, "%s: prim(%x) dinfo (%x) skb(%p) APLCI(%x) ncci(%p)",
 		__FUNCTION__, hh->prim, hh->dinfo, skb, aplci->addr, ncci);
 	if (!ncci) {
-		if (hh->prim != (DL_ESTABLISH | INDICATION)) {
+		if ((hh->prim != (DL_ESTABLISH | INDICATION)) && (hh->prim != (DL_ESTABLISH | CONFIRM))) {
 			int_error();
 			return(-ENODEV);
 		}
diff --git a/drivers/isdn/hardware/mISDN/avm_fritz.c b/drivers/isdn/hardware/mISDN/avm_fritz.c
index 8ab64f3..ce8811c 100644
--- a/drivers/isdn/hardware/mISDN/avm_fritz.c
+++ b/drivers/isdn/hardware/mISDN/avm_fritz.c
@@ -623,8 +623,8 @@ HDLC_irq(bchannel_t *bch, u_int stat)
 		hdlc->ctrl.sr.cmd |= HDLC_CMD_XRS;
 		write_ctrl(bch, 1);
 		hdlc->ctrl.sr.cmd &= ~HDLC_CMD_XRS;
-		write_ctrl(bch, 1);
 		HDLC_irq_xpr(bch);
+		return;
 	} else if (stat & HDLC_INT_XPR)
 		HDLC_irq_xpr(bch);
 }
diff --git a/drivers/isdn/hardware/mISDN/ncci.c b/drivers/isdn/hardware/mISDN/ncci.c
index f960c03..c3896f1 100644
--- a/drivers/isdn/hardware/mISDN/ncci.c
+++ b/drivers/isdn/hardware/mISDN/ncci.c
@@ -1361,8 +1361,8 @@ ncci_l3l4(Ncci_t *ncci, mISDN_head_t *hh, struct sk_buff *skb)
 static int
 ncciL4L3(Ncci_t *ncci, u_int prim, int dtyp, int len, void *arg, struct sk_buff *skb)
 {
-	capidebug(CAPI_DBG_NCCI_L3, "%s: NCCI %x prim(%x) dtyp(%x) skb(%p)",
-		__FUNCTION__, ncci->addr, prim, dtyp, skb);
+	capidebug(CAPI_DBG_NCCI_L3, "%s: NCCI %x prim(%x) dtyp(%x) len(%d) skb(%p)",
+		__FUNCTION__, ncci->addr, prim, dtyp, len, skb);
 	if (skb)
 		return(if_newhead(&ncci->link->inst.down, prim, dtyp, skb));
 	else