I have Huawei E3372h 4G modem with modified firmware that allows one to open additional ports when using Hilink setup.
The modem works fine in Mikrotik in Hilink mode, however I cannot get interface info. It says modem doesn't have serial interface.
At the same time I can telnet to the modem and issue AT command that confirms AT port (PC UI) is open: ^SETPORT:A1,A2;A3,A2,12,5
Can anyone advise which port Mikrotik tries to connect to get AT commands? Can it be changed? Or the issue is somewhere else?