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RADVISION Advanced Services Framework provides high level APIs that hide all standard complexities such SIP, XMPP or LDAP knowledge, and allows to develop fully interoperable Presence Based Services with ease. It includes all necessary elements for development of RCS compliant, standards-based presence-enabled solutions over IMS and NGN networks, such as SIMPLE for Presence service, XDM for management of buddy lists and preferences, and MSRP for Instant Messaging and File Transfer. All components are feature-rich, provide flexible and powerful APIs and are built to support demanding requirements of communication applications.
The ASF also enables Presence Based Services over the Internet Gtalk/XMPP standards, as well as LDAP capabilities and includes a fully integrated address book.
The RADVISION ASF, provides true Presence Based Services interoperability over and between Telecom, IMS, RCS compliant, Gtalk/XMPP, and LDAP networks.
Using RADVISION Advanced Services Framework reduces time to market, lowers costs and guarantees the highest level of standards compliance and interoperability in the industry to assure successful delivery of the presence-based communications solutions.
ASF Stack Highlights
- Fully standards-compliant developer solution for Presence and Instant Messaging
- Versatile set of tools for the development of Chat or Instant Messaging applications
- Can be used on any desktop, embedded, and mobile platform
- Enables Standard File and Image Transfer
- Rich Contact List Management capabilities
- RCS, NGN, SIMPLE and IMS standard compliant
- Full solution for NAT-challenged services
- Interoperable with Gtalk/XMPP
- LDAP capabilities
- Integrated address book
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Products developed with the ASF include:
- Mobile phones/PDA
- PCs and embedded voice/video/chat clients
- Set-top boxes and IPTV clients
- Video-share applications
- Interactive TV
- Gaming applications and appliances
- Collaboration solutions
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| Technical Overview |
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The Toolkit features an open, object-oriented architecture, which makes it programmer-friendly and highly flexible. It provides High-level APIs that hide the complexity of the protocols and enable rapid development of applications.
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The ASF framework is comprised of:
SIP Stack
An internally multi-threaded (configurable) library containing all SIP-specific functionality, including message encoding and decoding, transaction and call management and SIP extensions.
SIP 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.
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).
MSRP (Message Session Relay Protocol)
Stack MSRP is a protocol enabling point to point messaging and file transfer and handles messages as media. It is part of the SIMPLE OMA, IMS and RCS standards.
XDM (XML Document Management ) Stack
The XDM Stack provides a standard method for user-specific service-related information to be accessible to the service enablers that need them including buddy list/contact list management.
XMPP Stack
XMPP is an open technology for real-time communication, which powers a wide range of applications including instant messaging, presence, multi-party chat, voice and video calls, collaboration, lightweight middleware, content syndication, and generalized routing of XML data.
Integrated Address Book
Full implementation of a local address book that supports all networks (SIMPLE/XMPP/LDAP). It has built-in search capabilities in all fields, and has internal LDAP support enabling to develop enterprise endpoints. The LDAP schemas supported by the ASF are H.350.1 and H.350.2.
| Features |
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ASF Features includes:
- SIMPLE OMA Presence support
- XDM and XCAP support
- Gtalk/XMPP support
- LDAP support
- MSRP support
- Contact List Management
- Presence State Management
- Integrated address book implementation
- Protocol agnostic high level APIs
- Support for a wide variety of operating systems and easy portability to additional ones
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Standards Conformance
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The ASF conforms to all major standards for Presence and Instant Messaging. The ASF is compliant with IETF SIP, IMS 3GPP Release 9, RCS (Rich Communication Suite), XMPP, and LDAP H.350.1 and H.350.2.
RADVISION’s ASF provides all necessary SIP, MSRP, XDM, XMPP and LDAP services. The ASF is Coded in C++ and is cross-platform compatible, available for all common operating systems.
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| Deliverables |
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The ASF comes with:
- Full source code
- Complete source code sample application
- Full documentation, programmer’s guide and reference guide
- Porting guide (for unsupported operating systems)
- Training
- Version upgrades
- Professional customer support
- Turnkey solutions (upon request)
- Porting services (upon request)
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| Interoperability |
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All RADVISION products and solutions take into account interoperability issues between disparate networks, protocols and devices. The ASF has been thoroughly tested for full interoperability with other clients and servers.
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| Common Core |
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The ASF is based on RADVISION’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 RADVISION. |
RCS
(Rich Communication Suite) |
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RCS (Rich Communication Suite) is an initiative of the GSM Alliance (GSMA). RCS aims to speed up and facilitate the adoption of applications and services that provide an interoperable, convergent, rich communication experience based on IMS. From the end-user’s perspective, RCS facilitates services such instant messages, buddy lists and video sharing among users and devices across different networks.
The main elements of RCS are:
- An enhanced Phonebook with service capabilities and Presence-enhanced Contacts information
- Enhanced Messaging, which enables a large variety of Messaging options, including Chat and Messaging History
- Enriched Call, which enables multimedia content sharing during voice calls.
- The implementation of RCS is based on the same SIP IMS as its core protocol, with SIMPLE, XDM and MSRP providing actual service-layer support.
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