i am developing a SIP application for making and receiving a call and i want to add the G729 codec in my application. currently i am doing analysis on open source project SipDroid. if i want to make that application to support G729 codec how to do that? there is a different codecs configuration file in org.sipdroid.codecs package.how do create the this kind of .java file for G729 codec? Any suggestion and response will be appreciated.