Comment 2 for bug 1226312

It's unlikely that the volume is reset by the sound menu. I can't check what is doing it myself right now, as I don't have a sim card in my device. So could you please:

1. turn on debugging for pulse-audio by adding the line "log-level = debug" to ~/.config/pulse/daemon.conf
2. restart pulseaudio: kill the process and execute `pulseaudio --start`
3. call yourself twice
4. check in /var/log/syslog for lines "[...] Client $CLIENT changes volume of sink [...]", where $CLIENT is either indicator-sound-service or something else

Thanks.