Following applications are using the Sofia-SIP library (not a complete list but to show a few examples):

• Telepathy — IM/VoIP framework
  
  • Component using Sofia-SIP is the Telepathy-SofiaSIP connection manager
    
  • Telepathy is included in many Linux distributions: Ubuntu, Fedora, OpenSUSE, MeeGo, ….
    
  • Maemo Platform (Nokia N810 and N900)
    
• FreeSWITCH — Modular Media Switching Software Library / Soft-Switch Application
  
• SIPDHT — Collection of tools for creating and using a SIP based Distributed Hash Table
  

• Your application? Add an entry here!

• Example clients developed by Sofia-SIP developers
  

  • SofSipCli — Console mode SIP IM/VoIP client (with gstreamer-based RTP/media)