VoIP softphone (SIP)

Does any freelacer out there have any ready made SIP softphone written in java(off the shelve)with simple features like add contact, NAT traversal capability, centralized address book management, store outgoing, Incoming and missed calls etc. The VoIP SIP Softphone does not have to be fancy application, but simple one only for College Project, due to be submitted over the weekend, i don't mind open source code but the USER AGENT need to be customise to my specification. I have been trying to do this by myself i have also worked with another freelaser who has wasted about 13 days of my time over this, but only to give me dormantor inoperative application. but am run out time now probaly loose some marks over this, also lost some money to this dump programmer. PLs i hope u understand my plight, therefore no more time wasters if u cant deliver within 2 days don't bodder to bid Pls! pls! Pls!. Pls am just a college student who dont wnat to fail i hope u understand!!!