On 5/29/17, Harald Welte <laforge(a)gnumonks.org> wrote:
d) some modems expose voice as "GSM codec frames
over UART"
You got me curious here: are there any modems out there other than
FreeCalypso that offer the quoted special feature? Someone actually
paid me to add this special feature to FreeCalypso a little over a
year ago, so I reason that it must be sufficiently non-standard that
they couldn't find a commercial off-the-shelf modem that can do this
feat.
M~