SpeakerPhone software?

[Alexander Kushnirenko <kushnir@pccmu1.fnal.gov>]

Hi, 

I posted this message on debian-user, but got no reply... :(

Is it possible to put my phone on speakers?  So that when other person talk to 
me by phone, I'll hear him thru my speakers...  I have SoundBlaster compatilbe 
Sound Card, and Zoltrix 33.6 Interenal Modem with speakerphone (if it is of 
any use for this purpose).

Do I need a sofware program, or just one of those special AT commands to make 
things work?  I tried to use mgetty-voice but no luck there....

Thank you,
Sasha.