Maestro M1002G - Version 2.2.2 on Firmware R7.52.2, R7.53.1 and R7.54.2; Version 2.2.3 on Firmware R7.52.2, R7.53.1 and R7.54.2

Version 2.2.2, on firmware R7.52.2, R7.53.1 and R7.54.2
– Fixed and improved a lot of issues with IPCONNECT engine, connection should be faster and more stable now.
– Changed input format for Heartbeat packet string from ASCII to hex.
– Heartbeat packet doesn’t pause in case of other data transmission. AT+AUOPT=4,"<hex>" will prefix all outgo-
ing data (i.e. TCP & UDP) from modem.
– Increased the length to accommodate for custom port.
– If AT+AUOPT? fired, the heartbeat string properly displays the hex characters.
– Fixed +++ data being sent to server in AUTOTCP/UDP.
– Fixed TCPTERM access asking for password twice.
– Fixed data call not closing data mode.
– Fixed some issue with SMSAT engine.
– Removal of extra space in reply of the commands: AT+IPDDNSACCT=?, AT+IPDDNSACCT?, AT+IPDDNSSERV?,
AT+IPDDNSSERV=?, AT+IPDDNSUPD=?, AT+IPDDNSUPD?.
– Improved reboot logic in AUTOTCP, AUTOUDP and TCPTERM failure.
– Modified +IPGPRS command to accept <reboot_timeout>
Syntax: AT+IPGPRS=<Cid>,<APN>,<UN>,<PW>,<reboot_timeout>).
– Power control command string modified to accept value between 0 to 31.
– Change call screening +CSNW/R to 20 numbers from 10.
– Added one more option in IPOPT as <action> para ’3’ for disconnect and reconnect cellular if +IPPING failed.
Known issues: DOTA require +FTPDOTA path value to be set. In some specific case GPRS may not reconnect
properly, it is recommended to put a daily or weekly hard reset (+WRST) to ensure long term recovery.
Version 2.2.3, on firmware R7.52.2, R7.53.1 and R7.54.2
– Added command string TR service to SM, SC, EM, OP,
– Added %IMEI, %TIME, %DATE variable for command string service,
– Added +LED command to switch off LED for power saving,
– Updated +IPDDNSUPD parameter response with its state,
– Fixed %IP command string
– Fixed SMS command string sending SMS to itself,
– Fixed +SMSPASS parameter change,
– Fixed +AUTOTCP first client connexion, and reconnexion after network off,
– Fixed +AUTOUDP simultaneous connexion,
– Fixed +AUFCM buffering,
– Fixed SC message sent to unknown host, and SC index numbering,
– Fixed +SMSAT on/off issue,
– Fixed +SPRESET not reseting +SCHOST parameters,
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