I am using this device.
Bus 002 Device 005: ID 12d1:1506 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard
But , i am unable to send and receive messages. And how do i use USSD Code? Modem works fine on 3g networks.
Only i am not able to check my usage via USSD Codes.
I have treid using Gammu
But it is not recognizing my modem.
/dev/ttyUSB0
-/dev/ttyUSB3
you need to issue command as in post 13 – Web-E Aug 09 '12 at 12:07