Now...if someone can tell me the secret of the holy grail, I'd be set. Until then, maybe someone knows how to run TeamSpeak with Enemy Territory? Quake stuff won't open unless it has 'sole' control of the sound devices...and you can't spawn anything from ET. Go figure...
Depends on the sound card. If you have a Soundblaster 64/128, i.e. you're using the es1370/es1371 module, you can run the game (Quake or ET) with +set snddevice /dev/dsp1, and TeamSpeak on /dev/dsp as usual.
dsp1 is playback only, so you can do it the other way around.
Make sure esd and arts are turned off.
/Peter