SIP Stack and SDK

The award-winning SIP Developer Suite is a powerful and highly versatile set of tools to dramatically accelerate SIP application development. It includes a suite of stacks, SDKs and add-ons . Each one enables developers to combine all the necessary components to create an ideal development environment for every application’s specific needs. The SIP Developer Suite complies with IETF and 3GPP standards, and is IMS-compliant (3GPP/3GPP2, TISPAN and PacketCable 2.0). These high performance tools provide multiple API layers for full user control and flexibility.

Highlights

  • Modular

    The SIP Developer Suite is made up of “mix and match” components. This enables developers to create the exact environment needed for specific applications, while retaining a small footprint and boosting performance.

  • High-level APIs

    Hides IMS and SIP complexity to accelerate development time.

  • Comprehensive solution

    The SIP Developer Suite encompasses full IMS compliancy, SIMPLE OMA Standard Presence & Instant Messaging capabilities, STUN NAT Traversal and advanced testing tools.

  • Support for web deployments

    Includes support for WebSocket Transport (RFC6455, RFC 7118). Can be used as part of the WebRTC Interconnect Solution or independently in any SIP over WebSocket application.

For developers of:

  • SIP-enabled Firewall/NAT
  • SIP multimedia servers
  • 3G cellular handsets
  • IP Phones, WiFi and WiMAX phones
  • 3G-SEG
  • Connected PDAs
  • Video Terminals
  • Soft phones
  • Voice/Video Messaging IAD
  • Session border controllers
  • X-CSCFs
  • UA/UE IMS terminals
  • MRFC
  • IM-MGW
  • Presence aware SIP Devices
  • Application servers
  • BGCF
  • Softswitches
  • Gateways
  • Access concentrators
  • Conference bridges
  • Interactive Voice Response (IVR)

Did you know…

  • Softil’s SIP Developer Suite (often referred to as SIP SDK) supports everything you need for developing IMS-compliant Presence and Instant Messaging devices
  • The Softil SIP Developer Suite is available for over a dozen of operating systems including Windows, Linux, Android, iOS, MAC, Integrity, and OSE
  • The Softil SIP Developer Suite is compliant to the ED-137 / ED137 / ED137B standards

Architecture

The SIP Developer Suite follows a modular architecture which enables easy mix and match of suite components to fit the product’s exact needs.

The SIP Developer Suite includes:

  • SIP Toolkit

    All the necessary SIP, SDP and RTP services, such as encoding, sending, parsing and receiving IP messages over UDP, TCP and TLS, managing SIP calls and transactions.

  • IMS Add-On

    IMS SIP extensions to develop IMS-compliant SIP applications that are compliant with IETF and 3GPP and TISPAN IMS standards.

  • SigComp Add-On

    Compresses SIP signaling, including support of LZSS and DEFLATE algorithms which are implemented with Dynamic and Static compression.

  • ICE NAT Traversal Stack

    The Softil ICE NAT Traversal Stack is a software development tool. It is compliant with the Interactive Connectivity Establishment (ICE) draft developed by the IETF’s MMUSIC working group, comprising the latest NAT-related solutions available for SIP, RTSP, MEGACO/H.248, DIAMETER and others.

  • STUN NAT Traversal Stack

    An IETF standards-based STUN (Simple Traversal Underneath NAT) NAT Traversal Stack is a complete NAT traversal solution for developers, comprising the latest NAT-related solutions available for SIP, RTSP, MEGACO/H.248, DIAMETER and others.

  • Presence & Instant Messaging Add-On

    The SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE) add-on focuses on applying the Session Initiation Protocol (SIP, RFC 3261) to the suite of services collectively known as Instant Messaging and Presence (IMP).

  • XDM Toolkit

    The XDM, XML Document Management Stack provides a standard method for user-specific service-related information to be accessible to the service enablers that need them. For example Push to talk over Cellular and Instant Messaging. The XDM Stack is designed for building XDM Clients, as defined by OMA (Open Mobile Alliance).

  • MSRP Toolkit

    The MSRP Stack (Message Session Relay Protocol) is a software development tool designed for building MSRP enabled devices. MSRP is a protocol enabling point to point messaging and file transfer and handles messages as media. It is also part of the SIMPLE OMA standard.

  • BFCP Toolkit

    Binary Floor Control Protocol (BFCP), decribed in RFC 5882, is a communication protocol which facilitates control and management of the shared resources, such as speaking and presenting, in the common video-conference. Usage of BFCP, along with some other tools, allows for the SIP endpoints to deliver video-conferencing experience on par with those of traditional H.323-based systems.

  • XML Schema Package

    Includes service specific XML schemas, such as support for XCAP and PIDF.

  • SCTP Add-On

    SCTP (Stream Control Transmission Protocol) is an improved transport layer used for SIP signaling.

Conformance

The Session Initiation Protocol (SIP) is the industry dominant signaling protocol for real-time communication applications such as voice over IP (VoIP) and Instant Messaging (IM). Based on ubiquitous and accepted Internet protocols such as SMTP and HTTP, SIP is text encoded and well suited for the Internet and other IP environments. SIP provides the mechanisms to implement a broad range of features including call control services, next-generation service creation, interoperability with existing telephony systems, and mobility.

Softil’s SIP Developer Suite provides a complete solution for SIP/IMS developers. The SIP Developer Suite contains a suite of Stacks, Add-Ons and testing tools including SIMPLE (SIP for Instant Messaging and Presence Leverage Extensions) XDM (XML Document Management), MSRP (Message Session Relay Protocol), STUN (Session Traversal Utilities for NAT ), ICE (Interactive Connectivity Establishment), and IMS (IP Multimedia Subsystem) capabilities. The SIP Developer Suite complies with IETF and 3GPP latest standards, and is IMS-compliant (3GPP/3GPP2, TISPAN and PacketCable 2.0). These high performance tools provide multiple API layers for full user control and flexibility.

Coded in ANSI C and cross-platform compatible, the SIP Stack is available for all common operating systems.

Interoperability

All Softil products and solutions address interoperability issues between disparate networks, protocols and devices. The SIP Developer Suite has been thoroughly tested for full interoperability with other clients and servers.

Common Core

The SIP Developer Suite is based on Softil’s Common Core, an operating system abstraction layer specifically optimized for communication protocols and embedded platforms. This ensures easy portability of developed products between platforms and operating systems, including those not directly supported by Softil.

Softil SIP Developer Suite
The award-winning SIP Developer Suite is a powerful and highly versatile set of tools designed to dramatically accelerate development of SIP applications.
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