[6972.12 14:45:41] open /dev/wwan0at0
[6972.13 14:45:41] > AT
[6972.13 14:45:41] < AT

[6972.14 14:45:41] < OK
[6975.13 14:45:44] > AT+CEREG?
[6975.14 14:45:44] < AT+CEREG?

[6975.15 14:45:44] < +CEREG: 0,2
[6975.15 14:45:44] < 
[6975.15 14:45:44] < OK
[6978.14 14:45:47] > AT+CGREG?
[6978.15 14:45:47] < AT+CGREG?

[6978.16 14:45:47] < +CGREG: 0,2
[6978.16 14:45:47] < 
[6978.16 14:45:47] < OK
[6981.15 14:45:50] > AT+CREG?
[6981.16 14:45:50] < AT+CREG?

[6981.16 14:45:50] < +CREG: 0,2
[6981.17 14:45:50] < 
[6981.17 14:45:50] < OK
[6984.16 14:45:53] > AT+CGATT?
[6984.17 14:45:53] < AT+CGATT?

[6984.17 14:45:53] < +CGATT: 0
[6984.18 14:45:53] < 
[6984.18 14:45:53] < OK
[6987.17 14:45:56] > AT+COPS?
[6987.18 14:45:56] < AT+COPS?

[6987.18 14:45:56] < +COPS: 0
[6987.19 14:45:56] < 
[6987.19 14:45:56] < OK
[6990.18 14:45:59] > AT+CEER
[6990.19 14:45:59] < AT+CEER

[6990.19 14:45:59] < +CEER: No cause information available
[6990.20 14:45:59] < 
[6990.20 14:45:59] < OK
[6995.19 14:46:04] closed /dev/wwan0at0