Source Tree Structure

Directory Structure

Terminal and high-level libraries used for both signaling and media:

Common runtime library:

• "su" - sockets, memory management, threads
• "sresolv" - Asynchronous DNS resolver
• "ipt" - IPT utility library

SIP Signaling:

• "nua" - SIP User Agent library
• "nea" - SIP Event API
• "iptsec" - Digest authentication for HTTP and SIP
• "nta" - SIP transaction engine
• "tport" - Message transport
• "sip" - SIP messages and headers
• "msg" - Message handling
• "url" - URL handling
• "url" - low level parsing

HTTP subsystem:

• "nth" - HTTP protocol engine
• "http" - HTTP messages and headers

SDP processing:

• "soa" - SDP Offer/Answer engine for SIP
• "sdp" - SDP parser

Other:

• "stun" - STUN library

Features provided by Sofia-SIP library:

• "features" - Features provided by Sofia SIP

Documentation:

• "docs" - Doxygen reference documentation