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FW 01.27
- Modified sequence for network registration unsolicited and network registration log
- Modified detection of SIM card present/absent
- Added command to check if data connection to internet is valid
- Added semaphore for UART unsolicited management
- Fixed bug for reception of SMS if MQTT "log topic" was enabled
- Increased timeout for MQTT reception of data from CPU (fix problem in replying AT#RR command from MQTT)
- Fixed bug for MQTT publishing is "temporary" file is not found: publish is discarded
FW 01.16
- Added control for SIM card not initialized
- Fixed bug in getting parameter LAC/TAC in 4G connection
- Fixed bug for audio file during phone call
FW 01.17
- Fixed handler for SMS deletion
- Added URL escape sequence for HTTP POST request
- Added UDP server functionality
- Added command AT+UDP for sending UDP datagram
- Modified checks for valid data connection
- Fixed bug for carrier operator name in 4G registration
FW 01.18
- Added MQTT functionality (very first release)
FW 01.19
- Fixed bug for repetition of audio file during phone call
FW 01.20
- Fixed bug for AT+HTTP command (parsing of "data" field)
FW 01.21
- Added SSL for MQTT connection (MQTTS)
- Added SSL for HTTP request (HTTPS)
FW 01.22
- Modified APN profiles management
FW 01.23
- Added reception of SMS text enclosed in ' ' single quotes
- Modified sequence for incoming SMS unsolicited and incoming SMS log
- Added command to select debug levels
FW 01.24
- Added FW upgrade for CPU module via cellular connection
- Modified CLIP unsolicited management
- Modified size for MQTT parameters
FW 01.25
- Fixed bug for radio signal: now it uses AT+CSQ command
- Fixed bug for basestation parameters: MNC, MCC, LAC, CID
- Modified PDP context management
- Added unsolicited to signal if data connection is valid or not
- Introduced new MQTT implementation
- Added log for phone call not forwarded
FW 01.26
- Modified incoming phone call management
if phone number is not presented by carrier operator
- Modified command AT+UDP
- Added parameter "timeout" for AT+CALL command
- Added command AT+FOTA=xx.yy to upgrade/downgrade a specific FW version
- Fixed bug for "riconciliation code" for MQTT commands
- Fixed bug for paylod of Last Will And Testament topic
FW 01.28
- Updated version numbering
FW 01.29
- Improved parsing of AT+CALL command: now audio filename can be surrounded and accepted by double quote (e.g. AT+CALL=+391234567,"test.wav",8)
- Added support for ISO8859-1 charset (Latin-1 table) in SMS
- Added reboot if too many consecutive connections attempts to MQTT broker fail
FW 01.30
- Fixed bug for compilation script which excludes MQTT
FW 01.31
- Added server reply for AT#HTTP command
- Fixed parsing of AT#HTTP command in case data is contained inside single quotes ' '
FW 01.32
- Added support for MQTT retained message
- Fixed flag for MQTT Last Will & Testament retained message
- Fixed bug for MQTT published message with QoS different from the one specified in configuration
FW 04.00
- Device doesn't cycle through broker TCP ports but it reconnects to the same broker port
- Added reserved command AT+SMMPORT (AT+SMMPORT=<start>,<stop>)
- Added reserved command AT+SMMPORTFIX (AT+SMMPORTFIX=<port>)
FW 04.01
- Management of verbose reply to AT+FOTA command
FW 04.02
- IMS management and service profiles for VoLTE
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