he source code for this package is located in src/ directory. The JAIN-SIP-SERVICES is a JAIN-SIP application: it does not need proprietary nist-sip classes in addition of those defined in JAIN-SIP 1.1, you can substitute the NIST-SIP stack by

基于jain-sip的点对点聊天程序，实现了简单的点对点聊天功能，需要ant的支持。-Jain-sip-based peer-to-peer chat program, a simple point-to-point chat function, need the support of the ant.

Handles an Internet audio call over SIP.