diff --git a/include/btstack/utils.h b/include/btstack/utils.h
index 5c84dbe63..fbf64c29c 100644
--- a/include/btstack/utils.h
+++ b/include/btstack/utils.h
@@ -63,6 +63,10 @@ typedef uint8_t link_key_t[LINK_KEY_LEN];
 #define READ_BT_24( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[pos+1]) << 8) | (((uint32_t)buffer[pos+2]) << 16))
 #define READ_BT_32( buffer, pos) ( ((uint32_t) buffer[pos]) | (((uint32_t)buffer[pos+1]) << 8) | (((uint32_t)buffer[pos+2]) << 16) | (((uint32_t) buffer[pos+3])) << 24)
 
+// helper for SDP big endian format
+#define READ_NET_16( buffer, pos) ( ((uint16_t) buffer[pos+1]) | (((uint16_t)buffer[pos  ]) << 8))
+#define READ_NET_32( buffer, pos) ( ((uint32_t) buffer[pos+3]) | (((uint32_t)buffer[pos+2]) << 8) | (((uint32_t)buffer[pos+1]) << 16) | (((uint32_t) buffer[pos])) << 24)
+
 // HCI CMD OGF/OCF
 #define READ_CMD_OGF(buffer) (buffer[1] >> 2)
 #define READ_CMD_OCF(buffer) ((buffer[1] & 0x03) << 8 | buffer[0])
@@ -79,17 +83,13 @@ typedef uint8_t link_key_t[LINK_KEY_LEN];
 #define READ_L2CAP_LENGTH(buffer)     ( READ_BT_16(buffer, 4))
 #define READ_L2CAP_CHANNEL_ID(buffer) ( READ_BT_16(buffer, 6))
 
-// L2CAP Signaling Packet
-#define READ_L2CAP_SIGNALING_CODE( buffer )       (buffer[ 8])
-#define READ_L2CAP_SIGNALING_IDENTIFIER( buffer ) (buffer[ 9])
-#define READ_L2CAP_SIGNALING_LENGTH( buffer )     (READ_BT_16(buffer, 10))
-
-#define L2CAP_SIGNALING_DATA_OFFSET 12
-
 void bt_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
 void bt_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
 void bt_flip_addr(bd_addr_t dest, bd_addr_t src);
 
+void net_store_16(uint8_t *buffer, uint16_t pos, uint16_t value);
+void net_store_32(uint8_t *buffer, uint16_t pos, uint32_t value);
+
 void hexdump(void *data, int size);
 void print_bd_addr(bd_addr_t addr);
 int sscan_bd_addr(uint8_t * addr_string, bd_addr_t addr);
diff --git a/src/utils.c b/src/utils.c
index e961446a8..97d86469f 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -53,6 +53,18 @@ void bt_store_32(uint8_t *buffer, uint16_t pos, uint32_t value){
     buffer[pos++] = value >> 24;
 }
 
+void net_store_16(uint8_t *buffer, uint16_t pos, uint16_t value){
+    buffer[pos++] = value >> 8;
+    buffer[pos++] = value;
+}
+
+void net_store_32(uint8_t *buffer, uint16_t pos, uint32_t value){
+    buffer[pos++] = value >> 24;
+    buffer[pos++] = value >> 16;
+    buffer[pos++] = value >> 8;
+    buffer[pos++] = value;
+}
+
 void bt_flip_addr(bd_addr_t dest, bd_addr_t src){
     dest[0] = src[5];
     dest[1] = src[4];