diff --git a/openbsc/include/openbsc/mgcp_internal.h b/openbsc/include/openbsc/mgcp_internal.h
index 918ba4b..a17dc9e 100644
--- a/openbsc/include/openbsc/mgcp_internal.h
+++ b/openbsc/include/openbsc/mgcp_internal.h
@@ -28,6 +28,15 @@
 
 #define CI_UNUSED 0
 
+enum mgcp_connection_mode {
+	MGCP_CONN_NONE = 0,
+	MGCP_CONN_RECV_ONLY = 1,
+	MGCP_CONN_SEND_ONLY = 2,
+	MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY,
+	MGCP_CONN_LOOPBACK  = 4,
+};
+
+
 struct mgcp_endpoint {
 	int ci;
 	char *callid;
diff --git a/openbsc/src/mgcp/mgcp_network.c b/openbsc/src/mgcp/mgcp_network.c
index cc1bf44..5923fea 100644
--- a/openbsc/src/mgcp/mgcp_network.c
+++ b/openbsc/src/mgcp/mgcp_network.c
@@ -204,6 +204,10 @@
 	if (cfg->audio_loop)
 		dest = !dest;
 
+	/* Loop based on the conn_mode, maybe undoing the above */
+	if (endp->conn_mode == MGCP_CONN_LOOPBACK)
+		dest = !dest;
+
 	if (dest == DEST_NETWORK) {
 		if (proto == PROTO_RTP)
 			patch_and_count(&endp->bts_seq_no, &endp->bts_lost_no,
diff --git a/openbsc/src/mgcp/mgcp_protocol.c b/openbsc/src/mgcp/mgcp_protocol.c
index 8131277..d12d182 100644
--- a/openbsc/src/mgcp/mgcp_protocol.c
+++ b/openbsc/src/mgcp/mgcp_protocol.c
@@ -38,13 +38,6 @@
 #include <openbsc/mgcp.h>
 #include <openbsc/mgcp_internal.h>
 
-enum mgcp_connection_mode {
-	MGCP_CONN_NONE = 0,
-	MGCP_CONN_RECV_ONLY = 1,
-	MGCP_CONN_SEND_ONLY = 2,
-	MGCP_CONN_RECV_SEND = MGCP_CONN_RECV_ONLY | MGCP_CONN_SEND_ONLY,
-};
-
 /**
  * Macro for tokenizing MGCP messages and SDP in one go.
  *
@@ -364,6 +357,8 @@
 		*conn_mode = MGCP_CONN_RECV_ONLY;
 	else if (strcmp(msg, "sendrecv") == 0)
 		*conn_mode = MGCP_CONN_RECV_SEND;
+	else if (strcmp(msg, "loopback") == 0)
+		*conn_mode = MGCP_CONN_LOOPBACK;
 	else {
 		LOGP(DMGCP, LOGL_ERROR, "Unknown connection mode: '%s'\n", msg);
 		ret = -1;