But After it moved to t-mobile it used to connect to the t-mobile servers. was working until recently, is there any debugging i can can do.
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Thu Jun 23 09:20:16 2022 : /dev/ttyUSB2 AT+COPS=0,,,7
OK
Thu Jun 23 09:20:18 2022 : /dev/ttyUSB2 AT+CGDCONT=?
+CGDCONT: (1-42),"IP",,,(0-3),(0-4),(0-1),(0-1)
+CGDCONT: (1-42),"PPP",,,(0-3),(0-4),(0-1),(0-1)
+CGDCONT: (1-42),"IPV6",,,(0-3),(0-4),(0-1),(0-1)
+CGDCONT: (1-42),"IPV4V6",,,(0-3),(0-4),(0-1),(0-1)
OK
Thu Jun 23 09:20:19 2022 : /dev/ttyUSB2 AT+CGDCONT?;+CFUN?
+CGDCONT: 1,"IPV4V6","r.ispsn","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
+CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1
+CFUN: 1
OK
Thu Jun 23 09:20:24 2022 : /dev/ttyUSB2 AT+CMGS=?;+CMGL=?;+CMGR=?
+CMGL: (0-4)
OK
Thu Jun 23 09:20:25 2022 : /dev/ttyUSB2 AT+CMGF=0
OK
Thu Jun 23 09:20:28 2022 : /dev/ttyUSB2 AT+CPMS="SM","SM","SM"
+CPMS: 0,0,0,0,0,0
OK
Thu Jun 23 09:20:30 2022 : /dev/ttyUSB2 AT+CPMS="ME"
+CPMS: 0,11,0,0,0,0
OK
Thu Jun 23 09:20:32 2022 : /dev/ttyUSB2 AT+CPMS="SM"
+CPMS: 0,0,0,0,0,0
OK
Thu Jun 23 09:20:33 2022 : /dev/ttyUSB2 AT+CMGL=4
OK
Thu Jun 23 09:20:39 2022 : /dev/ttyUSB2 AT+CPMS="SM"
+CPMS: 0,0,0,0,0,0
OK
Thu Jun 23 09:20:59 2022 : /dev/ttyUSB2 AT+CPMS="SM"
+CPMS: 0,0,0,0,0,0
OK
Thu Jun 23 09:21:20 2022 : /dev/ttyUSB2 AT+CPMS="SM"
+CPMS: 0,0,0,0,0,0
OK