File list (Check if you may need any files):
GSM-GPRS-GPS-Shield-GSMSHIELD
.............................\GSM.cpp
.............................\GSM.h
.............................\HWSerial.cpp
.............................\HWSerial.h
.............................\LICENSE
.............................\LOG.cpp
.............................\LOG.h
.............................\README
.............................\README.md
.............................\SIM900.cpp
.............................\SIM900.h
.............................\Streaming.h
.............................\WideTextFinder.cpp
.............................\WideTextFinder.h
.............................\call.cpp
.............................\call.h
.............................\doc
.............................\...\Instructions.txt
.............................\...\List.txt
.............................\examples
.............................\........\GSM_GPRSLibrary_AT
.............................\........\..................\GSM_GPRSLibrary_AT.ino
.............................\........\GSM_GPRSLibrary_Call
.............................\........\....................\GSM_GPRSLibrary_Call.ino
.............................\........\GSM_GPRSLibrary_Client
.............................\........\......................\GSM_GPRSLibrary_Client.ino
.............................\........\GSM_GPRSLibrary_DTMF
.............................\........\....................\GSM_GPRSLibrary_DTMF.ino
.............................\........\GSM_GPRSLibrary_GPS
.............................\........\...................\GSM_GPRSLibrary_GPS.ino
.............................\........\GSM_GPRSLibrary_SMS
.............................\........\...................\GSM_GPRSLibrary_SMS.ino
.............................\........\GSM_GPRSLibrary_Server
.............................\........\......................\GSM_GPRSLibrary_Server.ino
.............................\gps.cpp
.............................\gps.h
.............................\inetGSM.cpp
.............................\inetGSM.h
.............................\sms.cpp
.............................\sms.h