bizerte - 2007-07-04

I'm a java developper and I'm biggener in VoIP technologie
I have a BCM 50 commutateur and a NICE CTI recorder installed
and I want to develop a simple client application that can call and receive voice
Can you tell me what I kind of soft I need to develop such application. What I should install in the client side or in the BCM side and what API (JTAPI, XTAPI )can I use.

Thanks in advance.
Sabri.