[Asterisk-Users] How record conversation to sound file ?

[lst.ara]

For our helpdesk application, we need record full conversation between 
any caller and one or two helpdek numbers (while the conversation is 
running). After conversation is ended (hangup ..), the recorded file 
(WAW) is putted into database. Using AGI, record and put to database is 
OK, but only as exclusive task. But I need record  WAW file "in 
background" the standard conversation.

Is any vay to do it with Asterisk ?

Thanks.