Hughes Software Systems


Organization Name of software Contact Type Description 
Hughes Software Systems SIP Lite Stack  info@hssworld.com SIP Stack Small memory footprint ANSI-C based SIP Stack 
  • Ideal for small devices 
  • Extremely memory efficient 
  • Performs complete parsing of SIP messages 
  • Handles  torture SIP messages completely. 
  • One time parsing 
  • bis-03  compliant 
  • optimised for performance 
  • Ideal for embedded systems 
  • Supports IMPP (Presence & Instant Messaging)
  • Supports any SIP message that is compliant to the SIP BNF, e.g., INVITE, ACK, BYE, CANCEL, OPTIONS, REGISTER, INFO 
Hughes Software Systems  SIP Core Stack info@hssworld.com SIP stack Core SIP Stack based on ANSI-C: 
  • C and/or C++ APIs for easy development 
  • Support for IMPP
  • Support for TEL
  • Support for Session-Timer
  • Support for DCS extensions 
  • Support for REFER 
  • Fully compliant to SIP bis-03 (SIP)
  • Fully compliant to RFC 2327 (SDP) 
  • Supports any SIP message that is compliant to the SIP BNF, e.g., INVITE, ACK, BYE, CANCEL, OPTIONS, REGISTER, INFO 
  • Platforms currently supported: Solaris, Linux, Windows, VxWorks. (Other ports available on request) 
  • Supports proposed extensions PROPOSE. SIP Caller Preferences draft (Schulzrinne & Rosenberg), SIP-BCP-T, Reliable Provisional Responses, 183 Message, Multipart MIME bodies, and many more. 
  • The Stack can support any new message that may be standardized which is compliant to the SIP grammar
  • Fully re-rentrant parsers 
  • Supports selective header and body parsing for optimizing performance. Also allows users to correct malformed/incorrect headers from other popularly used 3rd party SIP entities. 
  • Very easy to plug out components and make the stack more light weight (ideal for handheld devices). 
  • Supports both "by Value" and "by Reference" mode of operation of all SIP message components, making development of C++ wrappers very easy. 

Last updated  by Henning Schulzrinne