diff --git a/drivers/dahdi/wcb4xxp/base.c b/drivers/dahdi/wcb4xxp/base.c
index fb86a39..cbe998e 100644
--- a/drivers/dahdi/wcb4xxp/base.c
+++ b/drivers/dahdi/wcb4xxp/base.c
@@ -84,6 +84,7 @@
 
 static int debug = 0;
 static int spanfilter = 0xFF; /* Bitmap for ports 1-8 */
+static int te_nt_override = 0xFFFF;
 #ifdef LOOPBACK_SUPPORTED
 static int loopback = 0;
 #endif
@@ -1875,6 +1876,12 @@ static void hfc_init_all_st(struct b4xxp *b4)
 		 * - In B410P: GPIO=0: NT
 		 * - In Junghanns: GPIO=0: TE
 		 */
+		if (te_nt_override != 0xFFFF) {
+			nt = !((te_nt_override >> i) & 1);
+			dev_info(&b4->pdev->dev,
+				 "Port %d: %s mode set by module parameter\n",
+				 i + 1, (nt ? "NT" : "TE"));
+		} else {
 			if (IS_B410P(b4)) {
 				nt = ((gpio & (1 << (i + 4))) == 0);
 			} else if (IS_B430P(b4)) {
@@ -1895,10 +1902,11 @@ static void hfc_init_all_st(struct b4xxp *b4)
 				nt = ((gpio & (1 << (i + 4))) != 0);
 			}
 
-		s->te_mode = !nt;
-
 			dev_info(&b4->pdev->dev,
-			 "Port %d: %s mode\n", i + 1, (nt ? "NT" : "TE"));
+				 "Port %d: %s mode set by jumper\n", i + 1, (nt ? "NT" : "TE"));
+
+		}
+		s->te_mode = !nt;
 
 	}
 }
@@ -3549,6 +3557,7 @@ module_param(alarmdebounce, int, S_IRUGO | S_IWUSR);
 module_param(vpmsupport, int, S_IRUGO);
 module_param(timer_1_ms, int, S_IRUGO | S_IWUSR);
 module_param(timer_3_ms, int, S_IRUGO | S_IWUSR);
+module_param(te_nt_override, int, S_IRUGO | S_IWUSR);
 module_param(companding, charp, S_IRUGO);
 module_param(persistentlayer1, int, S_IRUGO | S_IWUSR);
 
@@ -3564,6 +3573,7 @@ MODULE_PARM_DESC(alarmdebounce, "msec to wait before set/clear alarm condition")
 MODULE_PARM_DESC(vpmsupport, "1=enable hardware EC, 0=disable hardware EC");
 MODULE_PARM_DESC(timer_1_ms, "NT: msec to wait for link activation, TE: unused.");
 MODULE_PARM_DESC(timer_3_ms, "TE: msec to wait for link activation, NT: unused.");
+MODULE_PARM_DESC(te_nt_override, "TE/NT mode override bitmap for spans. 1 - TE, 0 - NT");
 MODULE_PARM_DESC(companding, "Change the companding to \"alaw\" or \"ulaw\""\
 				"(alaw by default)");