diff --git a/drivers/dahdi/dahdi-base.c b/drivers/dahdi/dahdi-base.c
index 74d46f3..6d61dad 100644
--- a/drivers/dahdi/dahdi-base.c
+++ b/drivers/dahdi/dahdi-base.c
@@ -732,6 +732,8 @@ enum spantypes dahdi_str2spantype(const char *name)
 		return SPANTYPE_DIGITAL_BRI_TE;
 	else if (strcasecmp("BRI_SOFT", name) == 0)
 		return SPANTYPE_DIGITAL_BRI_SOFT;
+	else if (strcasecmp("DYNAMIC", name) == 0)
+		return SPANTYPE_DIGITAL_DYNAMIC;
 	else
 		return SPANTYPE_INVALID;
 }
@@ -749,6 +751,7 @@ const char *dahdi_spantype2str(enum spantypes st)
 	case SPANTYPE_DIGITAL_BRI_NT:	return "BRI_NT";
 	case SPANTYPE_DIGITAL_BRI_TE:	return "BRI_TE";
 	case SPANTYPE_DIGITAL_BRI_SOFT:	return "BRI_SOFT";
+	case SPANTYPE_DIGITAL_DYNAMIC:	return "DYNAMIC";
 	default:
 	case SPANTYPE_INVALID:		return "INVALID";
 	};
diff --git a/drivers/dahdi/dahdi_dynamic.c b/drivers/dahdi/dahdi_dynamic.c
index 72fbf5e..3ee1ad2 100644
--- a/drivers/dahdi/dahdi_dynamic.c
+++ b/drivers/dahdi/dahdi_dynamic.c
@@ -630,6 +630,10 @@ static int _create_dynamic(struct dahdi_dynamic_span *dds)
 	d->span.deflaw = DAHDI_LAW_MULAW;
 	d->span.flags |= DAHDI_FLAG_RBS;
 	d->span.chans = d->chans;
+	d->span.spantype = SPANTYPE_DIGITAL_DYNAMIC; 
+	d->span.linecompat = DAHDI_CONFIG_D4 | DAHDI_CONFIG_ESF	| 
+		DAHDI_CONFIG_AMI | DAHDI_CONFIG_B8ZS | DAHDI_CONFIG_CCS |
+		DAHDI_CONFIG_HDB3 | DAHDI_CONFIG_CRC4 | DAHDI_CONFIG_NOTOPEN;
 	d->span.ops = &dynamic_ops;
 	for (x = 0; x < d->span.channels; x++) {
 		sprintf(d->chans[x]->name, "DYN/%s/%s/%d",
diff --git a/include/dahdi/kernel.h b/include/dahdi/kernel.h
index c71e909..d13e60b 100644
--- a/include/dahdi/kernel.h
+++ b/include/dahdi/kernel.h
@@ -811,6 +811,7 @@ enum spantypes {
 	SPANTYPE_DIGITAL_BRI_NT,
 	SPANTYPE_DIGITAL_BRI_TE,
 	SPANTYPE_DIGITAL_BRI_SOFT,
+	SPANTYPE_DIGITAL_DYNAMIC,
 };
 const char *dahdi_spantype2str(enum spantypes st);
 enum spantypes dahdi_str2spantype(const char *name);