ReSIProcate Current Features

• Uses the Vovida Software License v1.0 (Vovida) (BSD like)
• UDP, TCP, TLS transports (DTLS almost complete)
• Easy to plug in new transport protocols
• A full implementation of the 3261 transaction state machine
• A lazy parser - only parse headers when the application requests them
• The parser is compliant with the current RFCs
• A strongly typed interface
• An Object-Oriented SDP parser and encoder
• Support for SipFrag
• Support for 'rport'
• Object Oriented C++ interface to the messages
• Asynchronous DNS library (ares from MIT)
• Full asynchronous DNS support in Windows
• Full NAPTR and SRV support (support RFCs: 3261, 3263, 2915, 2782)
• Fast performance: > ~500 transactions per second on an Intelâ„¢ P4
• Ability to add new header fields and parameters without rebuilding the stack
• MIME and multipart-MIME contents
• S/MIME
• Single-threaded or multi-threaded (thread-safe stack)
• One library with only two external dependencies
  • ares - DNS Resolver
  • openssl - Security (for TLS)
• ENUM support
• STUN Server Support
• Multiple SIP stacks in the same application
• Support for shutting down a SIP stack without exiting the application
• IPv6 support in the parser and DNS
• Support for multi-homed hosts
• Builds and runs on Windows and most Unixes. ReSIProcate has been built and tested on:
  • GNU/Linux 2.4, 2.5
  • Mac OS/X 10.2 (Jaguar) and 10.3 (Panther)
  • Solaris 8 and 9
  • Windows XP and 2003 Server
  • (most things with modern C++ compilers)
• Dialog Usage Manager (DUM) layer for UAs

Supported IETF RFCs

• RFC 1847: Security Multiparts for MIME: Multipart/Signed and Multipart/Encrypted
• RFC 2045: Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies
• RFC 2046: Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types
• RFC 2181: Clarifications to the DNS Specification
• RFC 2617: HTTP Authentication: Basic and Digest Access Authentication
• RFC 2782: A DNS RR for specifying the location of services (DNS SRV)
• RFC 2915: The Naming Authority Pointer (NAPTR) DNS Resource Record
• RFC 2976: The SIP INFO Method
• RFC 3261: SIP: Session Initiation Protocol
• RFC 3263: Session Initiation Protocol (SIP): Locating SIP Servers
• RFC 3265: Session Initiation Protocol (SIP)-Specific Event Notification
• RFC 3311: The SIP UPDATE Method
• RFC 3325: Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks
• RFC 3326: The Reason Header Field for the Session Initiation Protocol (SIP)
• RFC 3420: Internet Media Type message/sipfrag
• RFC 3428: Session Initiation Protocol (SIP) Extension for Instant Messaging
• RFC 3486: Compressing the Session Initiation Protocol (SIP)
• RFC 3515: The Session Initiation Protocol (SIP) Refer Method
• RFC 3581: An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing
• RFC 3761: The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)
• RFC 3824: Using E.164 numbers with the Session Initiation Protocol (SIP)
• RFC 3891: The Session Initiation Protocol (SIP) "Replaces" Header
• RFC 3892: The Session Initiation Protocol (SIP) Referred-By Mechanism
• RFC 3903: Session Initiation Protocol (SIP) Extension for Event State Publication
• RFC 4028: Session Timers
• RFC 4320: Actions Addressing Identified Issues with the Session Initiation Protocol's (SIP) Non-INVITE Transaction
• RFC 4474: Enhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)
• RFC 4508: Conveying Feature Tags with the Session Initiation Protocol (SIP) REFER Method
• RFC 4566: SDP: Session Description Protocol

Partially Supported RFCs

• RFC 3264: An Offer/Answer Model with the Session Description Protocol (SDP) (This is only partially supported, since many of the responsibilities are up to the app)
• RFC 3313: Private Session Initiation Protocol (SIP) Extensions for Media Authorization (Only the P-Media-Authorization header field is supported. No logic is provided.)
• RFC 3323: A Privacy Mechanism for the Session Initiation Protocol (SIP) (The Privacy header field is supported. Server logic is not provided, but endpoint logic is.)
• RFC 3327: Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts (Only the Path header field is supported. No logic is provided. This will change when the outbound implementation is merged in.)
• RFC 3329: Security Mechanism Agreement for the Session Initiation Protocol (SIP) (Only the Security-Client, Security-Server, and Security-Verify header fields are supported, the proxy mechanisms are not.)
• RFC 3388: Grouping of Media Lines in the Session Description Protocol (SDP) (trivial support; apps have access to group attributes, but groups are not handled for the app)
• RFC 3605: Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP) (trivial support)
• RFC 3608: Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration (The Service-Route header field is supported, registrar mechanism is not. The endpoint mechanism appears to be supported).
• RFC 3841: Caller Preferences for the Session Initiation Protocol (SIP) (Only Accept-Contact, Reject-Contact, and Request-Disposition header fields are supported. No proxy support.)
• RFC 3911: The Session Initiation Protocol (SIP) "Join" Header (Only the Join header field is supported, no other support.)
• RFC 3966: The tel URI for Telephone Numbers (Partial support. The isub and phone-context parameters are not supported. The comparator isn't implemented.)
• RFC 4483: A Mechanism for Content Indirection in Session Initiation Protocol (SIP) Messages (Trivially supported, the application layer must do most of the work.)
• RFC 4488: Suppression of Session Initiation Protocol (SIP) REFER Method Implicit Subscription (The Refer-Sub header field is supported, and there is some endpoint support.)