diff --git a/wireshark/abisip.patch b/wireshark/abisip.patch
new file mode 100644
index 0000000..9802595
--- /dev/null
+++ b/wireshark/abisip.patch
@@ -0,0 +1,304 @@
+Index: epan/dissectors/Makefile.common
+===================================================================
+--- epan/dissectors/Makefile.common.orig
++++ epan/dissectors/Makefile.common
+@@ -873,6 +873,7 @@
+ # Dissectors with warnings.
+ #
+ DIRTY_DISSECTOR_SRC =	\
++	packet-abis_ip.c	\
+ 	packet-k12.c 		\
+ 	packet-nbd.c		\
+ 	packet-sccp.c		\
+Index: epan/dissectors/packet-rsl.c
+===================================================================
+--- epan/dissectors/packet-rsl.c.orig
++++ epan/dissectors/packet-rsl.c
+@@ -3950,6 +3950,7 @@
+ 	proto_register_field_array(proto_rsl, hf, array_length(hf));
+ 	proto_register_subtree_array(ett, array_length(ett));
+ 
++	register_dissector("gsm_abis_rsl", dissect_rsl, proto_rsl);
+ 
+ }
+ 
+Index: epan/dissectors/packet-abis_ip.c
+===================================================================
+--- /dev/null
++++ epan/dissectors/packet-abis_ip.c
+@@ -0,0 +1,275 @@
++/* packet-abis_ip.c
++ * Routines for packet dissection of ip.access A-bis over IP
++ * Copyright 2009 by Harald Welte <laforge@gnumonks.org>
++ *
++ * $Id$
++ *
++ * Wireshark - Network traffic analyzer
++ * By Gerald Combs <gerald@wireshark.org>
++ * Copyright 1998 Gerald Combs
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#ifdef HAVE_CONFIG_H
++# include "config.h"
++#endif
++
++#include <glib.h>
++
++#include <epan/packet.h>
++#include <epan/emem.h>
++
++/* Initialize the protocol and registered fields */
++static int proto_abisip = -1;
++static int proto_ipaccess = -1;
++
++static int hf_abisip_data_len = -1;
++static int hf_abisip_protocol = -1;
++
++static int hf_ipaccess_msgtype = -1;
++static int hf_ipaccess_attr_tag = -1;
++static int hf_ipaccess_attr_string = -1;
++
++/* Initialize the subtree pointers */
++static gint ett_abisip = -1;
++static gint ett_ipaccess = -1;
++
++enum {
++	SUB_OML,
++	SUB_RSL,
++	SUB_IPACCESS,
++
++	SUB_MAX
++};
++
++static dissector_handle_t sub_handles[SUB_MAX];
++
++#define TCP_PORT_ABISIP_PRIM	 3002
++#define TCP_PORT_ABISIP_SEC	 3003
++#define TCP_PORT_ABISIP_INST	 3006
++
++#define ABISIP_RSL	0x00
++#define ABISIP_IPACCESS	0xfe
++#define ABISIP_OML	0xff
++
++static const value_string abisip_protocol_vals[] = {
++	{ 0x00,		"RSL" },
++	{ 0xfe,		"IPA" },
++	{ 0xff,		"OML" },
++	{ 0, 		NULL }
++};
++
++static const value_string ipaccess_msgtype_vals[] = {
++	{ 0x00,		"PING?" },
++	{ 0x01, 	"PONG!" },
++	{ 0x04, 	"IDENTITY REQUEST" },
++	{ 0x05, 	"IDENTITY RESPONSE" },
++	{ 0x06, 	"IDENTITY CONF" },
++	{ 0,		NULL }
++};
++
++static const value_string ipaccess_idtag_vals[] = {
++	{ 0x00,		"Serial Number" },
++	{ 0x01,		"Unit Name" },
++	{ 0x02,		"Location" },
++	{ 0x04,		"Equipment Version" },
++	{ 0x05,		"Software Version" },
++	{ 0x06,		"IP Address" },
++	{ 0x07,		"MAC Address" },
++	{ 0x08,		"Unit ID" },
++};
++
++static gint
++dissect_ipa_attr(tvbuff_t *tvb, int base_offs, packet_info *pinfo, proto_tree *tree)
++{
++	guint8 len, tag, attr_type;
++
++	int offset = base_offs;
++
++	while (tvb_reported_length_remaining(tvb, offset) != 0) {
++		attr_type = tvb_get_guint8(tvb, offset);
++
++		switch (attr_type) {
++		case 0x00:	/* a string prefixed by its length */
++			len = tvb_get_guint8(tvb, offset+1);
++			tag = tvb_get_guint8(tvb, offset+2);
++			proto_tree_add_item(tree, hf_ipaccess_attr_tag,
++					    tvb, offset+2, 1, FALSE);
++			proto_tree_add_item(tree, hf_ipaccess_attr_string,
++					    tvb, offset+3, len-1, FALSE);
++			break;
++		case 0x01:	/* a single-byte reqest for a certain attr */
++			len = 0;
++			proto_tree_add_item(tree, hf_ipaccess_attr_tag,
++					    tvb, offset+1, 1, FALSE);
++			break;
++		};
++		offset += len + 2;
++	};
++	return offset;
++}
++
++/* Dissect an ip.access specific message */
++static gint
++dissect_ipaccess(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
++{
++	proto_item *ti;
++	proto_tree *ipaccess_tree;
++	guint8 msg_type;
++
++	msg_type = tvb_get_guint8(tvb, 0);
++
++	if (check_col(pinfo->cinfo, COL_INFO))
++		col_append_fstr(pinfo->cinfo, COL_INFO, "%s ",
++				val_to_str(msg_type, ipaccess_msgtype_vals,
++					   "unknown 0x%02x"));
++	if (tree) {
++		ti = proto_tree_add_item(tree, proto_ipaccess, tvb, 0, -1, FALSE);
++		ipaccess_tree = proto_item_add_subtree(ti, ett_ipaccess);
++		proto_tree_add_item(ipaccess_tree, hf_ipaccess_msgtype,
++				    tvb, 0, 1, FALSE);
++		switch (msg_type) {
++		case 4:
++		case 5:
++			dissect_ipa_attr(tvb, 1, pinfo, ipaccess_tree);
++			break;
++		}
++	}
++
++	return 1;
++}
++
++
++/* Code to actually dissect the packets */
++static void
++dissect_abisip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
++{
++
++	int offset = 0;
++
++	if (check_col(pinfo->cinfo, COL_PROTOCOL))
++		col_set_str(pinfo->cinfo, COL_PROTOCOL, "Abis/IP");
++	if (check_col(pinfo->cinfo, COL_INFO))
++		col_clear(pinfo->cinfo, COL_INFO);
++
++	while (tvb_reported_length_remaining(tvb, offset) != 0) {
++		proto_item *ti;
++		proto_tree *abisip_tree;
++		guint8 len, msg_type;
++		tvbuff_t *next_tvb;
++
++		len = tvb_get_guint8(tvb, offset+1);
++		msg_type = tvb_get_guint8(tvb, offset+2);
++
++		if (check_col(pinfo->cinfo, COL_INFO))
++			col_append_fstr(pinfo->cinfo, COL_INFO, "%s ",
++				     val_to_str(msg_type, abisip_protocol_vals,
++						   "unknown 0x%02x"));
++
++		if (tree) {
++			ti = proto_tree_add_item(tree, proto_abisip, tvb,
++						 offset, len+3, FALSE);
++			abisip_tree = proto_item_add_subtree(ti, ett_abisip);
++			proto_tree_add_item(abisip_tree, hf_abisip_data_len,
++					    tvb, offset+1, 1, FALSE);
++			proto_tree_add_item(abisip_tree, hf_abisip_protocol,
++					    tvb, offset+2, 1, FALSE);
++		}
++
++		next_tvb = tvb_new_subset(tvb, offset+3, len, len);
++
++		switch (msg_type) {
++		case ABISIP_RSL:
++			/* hand this off to the standard A-bis RSL dissector */
++			call_dissector(sub_handles[SUB_RSL], next_tvb, pinfo, tree);
++			break;
++		case ABISIP_OML:
++			/* hand this off to the standard A-bis OML dissector */
++#if 0
++			call_dissector(sub_handles[SUB_OML], next_tvb,
++					 pinfo, tree);
++#endif
++			break;
++		case ABISIP_IPACCESS:
++			dissect_ipaccess(next_tvb, pinfo, tree);
++			break;
++		}
++		offset += len + 3;
++	}
++}
++
++void proto_register_abisip(void)
++{
++	static hf_register_info hf[] = {
++		{&hf_abisip_data_len,
++		 {"DataLen", "abisip.data_len",
++		  FT_UINT8, BASE_DEC, NULL, 0x0,
++		  "The length of the data (in bytes)", HFILL}
++		 },
++		{&hf_abisip_protocol,
++		 {"Protocol", "abisip.protocol",
++		  FT_UINT8, BASE_HEX, VALS(abisip_protocol_vals), 0x0,
++		  "The A-bis/IP Sub-Protocol", HFILL}
++		 },
++	};
++	static hf_register_info hf_ipa[] = {
++		{&hf_ipaccess_msgtype,
++		 {"MessageType", "ipaccess.msg_type",
++		  FT_UINT8, BASE_HEX, VALS(ipaccess_msgtype_vals), 0x0,
++		  "type of ip.access messsage", HFILL}
++		 },
++		{&hf_ipaccess_attr_tag,
++		 {"Tag", "ipaccess.attr_tag",
++		  FT_UINT8, BASE_HEX, VALS(ipaccess_idtag_vals), 0x0,
++		  "Attribute Tag", HFILL}
++		 },
++		{&hf_ipaccess_attr_string,
++		 {"String", "ipaccess.attr_string",
++		  FT_STRING, BASE_NONE, NULL, 0x0,
++		  "String attribute", HFILL}
++		 },
++	};
++
++	static gint *ett[] = {
++		&ett_abisip,
++		&ett_ipaccess,
++	};
++
++	proto_abisip =
++	    proto_register_protocol("A-bis/IP protocol as used by ip.access",
++				    "A-bis/IP", "abis_ip");
++	proto_ipaccess =
++	    proto_register_protocol("A-bis/IP ip.access sub-protocol",
++				    "IPA", "ipaccess");
++
++	proto_register_field_array(proto_abisip, hf, array_length(hf));
++	proto_register_field_array(proto_ipaccess, hf_ipa, array_length(hf_ipa));
++	proto_register_subtree_array(ett, array_length(ett));
++}
++
++void proto_reg_handoff_abisip(void)
++{
++	dissector_handle_t abisip_handle;
++
++	sub_handles[SUB_RSL] = find_dissector("gsm_abis_rsl");
++	sub_handles[SUB_OML] = find_dissector("gsm_abis_oml");
++
++	abisip_handle = create_dissector_handle(dissect_abisip, proto_abisip);
++	dissector_add("tcp.port", TCP_PORT_ABISIP_PRIM, abisip_handle);
++	dissector_add("tcp.port", TCP_PORT_ABISIP_SEC, abisip_handle);
++	dissector_add("tcp.port", TCP_PORT_ABISIP_INST, abisip_handle);
++	dissector_add("udp.port", TCP_PORT_ABISIP_INST, abisip_handle);
++}