DGC Modem
These are generic modems sold under different names (Voluxe, MagiDeal, Baoblaze, Infosec, Kirmax), labeled in the most generic way
Well mine was named Kalea, opening the device it turns to be a connexant chipset File:CX-39010.pdf
Now I highly doubt these chips were made in 2021, the board itself is labeled 2017.
lsusb output:
Bus 001 Device 017: ID 0572:1340 Conexant Systems (Rockwell), Inc. USB Modem
But these seems to be hardware modems nonetheless, and they do resport do AT commands:
Welcome to minicom 2.7.1
OPTIONS: I18n
Compiled on Jul 22 2021, 00:00:00.
Port /dev/ttyACM1, 01:10:34
Press CTRL-A Z for help on special keys
at
OK
ati
56000
OK
ati0
56000
OK
ati1
OK
ati2
OK
ati3
CX93001-EIS_V0.2013-V92
OK
ati4
OK
ati5
B5
OK
ati6
OK
ati7
OK
There are linux drivers for these modems at linuxant however they're mostly junk and severely outdated.
DSPKOUT wasn't routed on the board so in order to get speaker support:
