root@stm32mp1-hexabitzv2-mx:~/LTE_1/ubxlib/port/platform/linux/mcu/posix/runner/issam/build# ./issam_LTE 
U_CELL: initialising with enable power pin not connected, PWR_ON pin not connected and VInt pin not connected.
AT

OK
AT

OK
U_CELL_PWR: powering on, module is already on.
ATE0

OK
AT+CMEE=2

OK
AT+UDCONF=1,0

OK
ATI9

02.00,A01.22

OK
AT&C1

OK
AT&D0

OK
AT&K0

OK
AT+UPSV=0

OK
AT+UGPRF?

+UGPRF:2,0,""

OK
AT+CFUN=4

OK

+CREG: 0,"0000","0000",0

+CEREG: 0,"0000","00000000", 0,,,"00000000","00000000"

+CREG: 0,"0000","0000"

+CGREG: 0,"0000","0000"
U_PORT_PPP: listening for pppd on socket 127.0.0.1:5000.
Opened device with return code 0.
Bringing up the network...
U_CELL_NET: preparing to register/connect...
AT+CREG=2

OK
AT+CGREG=2

OK
AT+CEREG=4
U_PORT_PPP: pppd has connected to socket.

OK
AT+CIMI

234502106062261

OK
U_CELL_NET: user-specified APN is "TM".
AT+CGDCONT=1,"IP","TM"

OK
AT+UAUTHREQ=1,0,"",""

OK
U_CELL_NET: setting automatic network selection mode...
AT+COPS?

+COPS: 0

OK
AT+CFUN=1

OK
AT+CREG?

+CREG: 0,"0000","0000",0

OK
-1: NReg
AT+CGREG?

+CGREG: 2,0,"0000","0000"

OK
-1: NReg
AT+CEREG?

+CEREG: 4,0,"0000","00000000", 0,0,0,"00000000","00000000"

OK
-1: NReg
AT+CREG?

+CREG: 0,"0000","0000",0

OK
-1: NReg

+CREG: 5,"35c5","00dcf205",7

+CEREG: 5,"35c5","00dcf205",7

+CREG: 5,"35C5","00DC"

+CGREG: 4,"35C5","00DC"
7: RegR
7: RegR
0: RegR
-1: Unk 0
AT+COPS=3,0

OK
AT+COPS?

+COPS: 0,0,"Orange F",7

OK
AT+CGATT?

+CGATT:1

OK
AT+CGACT?

+CGACT: 0,0

OK
AT+CGACT=1,1

OK
AT+CGACT?

+CGACT: 1,1

OK
AT+CEER

+CEER:No Error Call

OK
U_CELL_NET: connected after 6 second(s).
AT+CGACT?

+CGACT: 1,1

OK
AT+CGPADDR=1

+CGPADDR: 1,"10.5.159.114"

OK
U_CELL_NET: IP address "10.5.159.114".
AT+CGCONTRDP=1

+CGCONTRDP: 1,6,"TM.mnc050.mcc234.gprs","10.5.159.114.0.0.0.0"

OK
U_CELL_NET: unable to read DNS addresses.
AT+CMUX=0,0,,128

OK
ATE0
ATE0

OK
AT+CMEE=2

OK
U_CELL_PPP: sent ATD*99***1#[0d]
U_CELL_PPP: received ATD*99***1#[0d][0d][0a]CONNECT[0d][0a]
U_PORT_PPP: socket connected to module.
Found 18.133.144.142 at 18.133.144.142.
Sent 50 byte(s) to echo server.

Received echo back (103 byte(s)): HTTP/1.1 400 Bad Request
Content-Type: text/plain; charset=utf-8
Connection: close

400 Bad Request
Closing socket...
Taking down network...
U_CELL_PPP: sent ~[ff]}#[c0]!}%}"} }0User requestS3~
U_CELL_PPP: received ~[ff]}#[c0]!}%}"} }0User requestS3~
U_CELL_PPP: *** WARNING *** PPP did not terminate, it may not connect next time, you may wish to reboot the module.
U_PORT_PPP: socket disconnected from module (but pppd still connected to socket).
AT+COPS?

+COPS: 0,0,"Orange F",7

OK
AT+CFUN=4

OK

+CREG: 0,"0000","0000",0

+CEREG: 0,"0000","00000000", 0,,,"00000000","00000000"

+CREG: 0,"0000","0000"

+CGREG: 0,"0000","0000"
-1: NReg
-1: NReg
-1: NReg
-1: NReg
U_CELL_NET: disconnected.
AT+CEER

+CEER:No Error Call

OK
Closing device...
Deinitializing ubxlib...
U_PORT_PPP: pppd has been disconnected from socket.
U_PORT_PPP: no longer listening for pppd on socket.
Done.