In order to enable phone calls, I run the following commands: AT+CLIP=1, AT+CRC=1, AT+CNMI=1,2 on /dev/ttyUSB0.Īlso, if I run AT^CVOICE? I get ^CVOICE:0,8000,16,20.įinally, when I make/receive calls, I run AT^DDSETEX=2 on /dev/ttyUSB0 to enable audio forward to the /dev/ttyUSB1 port. I'm trying to use the device to make and receive calls.įor my purpose, it is needed (i) to save audio of the call to file and (ii) to send audio to the telephony call from an input file.Īs far as I understood (I can't find any official guide), the E173 dongle sets up three new devices (please correct me if I'm wrong):
I've got a Huawei E173 USB dongle connected to a Raspberry PI.
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