Aleksander Morgado
c9a56605ca
USB sticks only support voice if ^CVOICE returns 0. And to enable audio streaming on the "Application" port (whatever is returned by AT^DDSETEX=?) we need to send AT^DDSETEX=<port> after starting the call. After that the serial port will send and accept signed 16-bit 8000hz PCM audio, or whatever format is returned by ^CVOICE?. This patch is a rework of the original implementation by: Dan Williams <dcbw@redhat.com>