Projects using SIP SIMPLE Client SDK

• SIP clients http://sipsimpleclient.com/wiki/SipTesting - SIP Command Line Tools
• Blink  http://icanblink.com - SIP Client for Mac, Linux and Windows
• SylkServer  http://sylkserver.com - SIP Conference server
• OpenXCAP  http://openxcap.org - SIP Presence Policy Server
•  http://code.google.com/p/moshimoshi
•  https://github.com/saghul/SIPwPing-server

There are more but people are shy ...