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diff --git a/libraries/GSM/GSM3ShieldV1MultiServerProvider.h b/libraries/GSM/GSM3ShieldV1MultiServerProvider.h
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+/*
+This file is part of the GSM3 communications library for Arduino
+-- Multi-transport communications platform
+-- Fully asynchronous
+-- Includes code for the Arduino-Telefonica GSM/GPRS Shield V1
+-- Voice calls
+-- SMS
+-- TCP/IP connections
+-- HTTP basic clients
+
+This library has been developed by Telefónica Digital - PDI -
+- Physical Internet Lab, as part as its collaboration with
+Arduino and the Open Hardware Community. 
+
+September-December 2012
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library 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
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+The latest version of this library can always be found at
+https://github.com/BlueVia/Official-Arduino
+*/
+#ifndef __GSM3_SHIELDV1SERVERPROVIDER__
+#define __GSM3_SHIELDV1SERVERPROVIDER__
+
+#include <GSM3MobileServerProvider.h>
+#include <GSM3ShieldV1BaseProvider.h>
+
+class GSM3ShieldV1MultiServerProvider : public GSM3MobileServerProvider,  public GSM3ShieldV1BaseProvider
+{
+	private:
+		
+		// Used sockets
+		uint8_t socketsAsServer;
+		uint8_t socketsAccepted;
+
+		/** Continue to connect TCP server function
+		 */
+		void connectTCPServerContinue();
+
+		/** Continue to get IP function
+		 */
+		void getIPContinue();
+		
+		/** Release socket
+			@param socket		Socket
+		 */
+		void releaseSocket(int socket);
+		
+		/** Parse QILOCIP response
+			@param LocalIP			Buffer for save local IP address
+			@param LocalIPlength	Buffer size
+			@param rsp				Returns if expected response exists
+			@return true if command executed correctly
+		 */
+		bool parseQILOCIP_rsp(char* LocalIP, int LocalIPlength, bool& rsp);
+		
+	public:
+	
+		/** Constructor */
+		GSM3ShieldV1MultiServerProvider();
+		
+		/** minSocketAsServer
+			@return 0
+		 */
+		int minSocketAsServer(){return 0;};
+		
+		/** maxSocketAsServer
+			@return 0
+		 */
+		int maxSocketAsServer(){return 4;};
+		
+		/** Get modem status
+			@param s
+			@return modem status (true if connected)
+		 */
+		bool getSocketAsServerModemStatus(int s);
+		
+		/** Get new occupied socket as server
+			@return command error if exists
+		 */
+		int getNewOccupiedSocketAsServer();
+
+		/** Connect server to TCP port
+			@param port			TCP port
+			@return	command error if exists
+		 */
+		int connectTCPServer(int port);
+		
+		/** Get server IP address
+			@param LocalIP			Buffer for copy IP address
+			@param LocalIPlength	Length of buffer
+			@return command error if exists
+		 */
+		int getIP(char* LocalIP, int LocalIPlength);
+		
+//		int disconnectTCP(bool client1Server0, int id_socket);
+		
+		/** Get last command status
+			@return returns 0 if last command is still executing, 1 success, >1 error
+		 */
+		int ready(){return GSM3ShieldV1BaseProvider::ready();};
+		
+		/** Get socket status as server
+			@param socket		Socket to get status
+			@return socket status
+		 */
+		bool getStatusSocketAsServer(uint8_t socket);
+		
+		/** Manages modem response
+			@param from 		Initial byte of buffer
+			@param to 			Final byte of buffer
+		 */
+		void manageResponse(byte from, byte to);
+		
+		/** Recognize unsolicited event
+			@param oldTail		
+			@return true if successful
+		 */		
+		bool recognizeUnsolicitedEvent(byte oldTail);
+
+	
+};
+
+#endif