[Ekiga-list] How to separate conversation and ringing devices ?

[geo cherchetout <geo cherchetout laposte net>]

Hello,

My soundcard is "Creative labs Live! EMU10k1 (rev 07)" with several output 
jacks, so I can choose successfully wich one to play sounds like this:

$ aplay -D front file.wav
$ aplay -D rear file.wav

I should like to have Ekiga using one output for ringing playback and the 
other output for conversation playback.

Ekiga knows these playback devices:

/dev/dsp (PTLIB/OSS)
Default (PTLIB/ALSA)
SB Live! Value [CT4830] (PTLIB/ALSA)
SB Live! Value [CT4830] (1) (PTLIB/ALSA)
SB Live! Value [CT4830] (2) (PTLIB/ALSA)
ptlib pulse plugin (PTLIB/Pulse)

but no matter which one I set, ringing and conversation are always played on 
the same front output. :-(

Perhaps somebody knows how to have Ekiga separating playback devices ?