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 another JAIN-SIP-1.1 compliant stack and it should

interoperate.