Linux command line:
linphone includes a scriptable linphonec command-line version. Starting linphonec with the --pipe option will create a socket in /tmp that one can write to and read from.
It fulfills all your requirements and I've tested (for my own uses) all of them successfully:
- Calling via SIP,
- transmitting DTMF sequences,
- recording a call to file, and
- via parsing its output, you can see when the call finishes and quit the program.
You'd do a loop like this:
#!/bin/bash
socket=/tmp/linphonec-$(id -u)
filename=$HOME/record
number=123456789
passfile=$HOME/1234.wav
linphonec --pipe 2>&1 |
while read -r line
do
echo $line
case $line in
*Ready )
sleep 1
echo ">>> initializing"
for command in "soundcard use files" "record $filename" "call $number"
do
echo -n $command | nc -q 5 -U $socket
done
;;
*Call\ *\ with\ *\ connected. )
sleep 1
echo ">>> sending pass"
echo -n "play $passfile" | nc -q 5 -U $socket
;;
*Call\ *\ ended. )
sleep 1
echo ">>> quitting"
while echo -n quit | nc -q 5 -U $socket 2&>-
do
i=$(expr $i + 1)
if test $i -ge 5
then
echo $(basename $0): could not shut down linphonec &>2
exit 1
fi
sleep 2
done
echo ">>> END"
exit
;;
esac
done
This is not yet on optimal solution. Note that under >>> sending pass, I'm playing a wav file instead of sending a DTMF sequence. linphone is capable of the latter, but during my cursory fiddling I haven't yet found the right way to do so while sound in- and output is on file basis to allow recording.
Sadly, linphone documentation is sparse. I've had best results just starting linphonec interactively and using the builtin help.
