SIP SOLUTION
The  Session  Initiation  Protocol  (SIP)  is  an  IETF standard that defines the basic services to create, modify and delete multimedia sessions and calls. It is  a  lightweight  protocol,  transport-independent, text-based  protocol  used  for  signaling  Internet conferencing  as  well  as  telephony.  It  can  be  used with any datagram or stream protocol such as TCP, UDP or ATM and allows for low overheads due to a text-based messaging scheme.

HIGHLIGHTS

  • SIP stack for embedded platform for clients and applications

  • ROMable and re-entrant

  • Small code footprint

  • RTOS and processor independent

  • User configurable parameters

  • Simplified interface APIs for easy integration with application and transport stack

APPLICATIONS

  • Video Phones

  • VoIP Gateways

  • IP Phones

KEY FEATURES

  • Fully compliant with RFC 2543

  • Supports TCP and UDP

  • Supports proxy and redirect servers

  • Advance call features such as call hold, call waiting, call transfer, call forward, etc

  • Various components available - User Agent Client, User Agent Server SIP Message Generator: INVITE, ACK,  BYE, OPTIONS, CANCEL and REGISTER

  • SDP/SAP message generators

  • Timer manager

  • User Agent Server

  • SIP/SAP/SDP Message parsers

  • SIP Response generator

  • Interfaces provided for RTP, User Interface

  • Interface provided for T1/E1 PSTN/PBX system

  • Configurable parameters for default SIP and RTP port numbers, packetization parameters for controlling   re transmissions, number of connections, etc