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Revision 364 (Adrian Georgescu, 01/10/2009 01:19 PM) → Revision 365/574 (Adrian Georgescu, 01/10/2009 01:19 PM)
= Description = [[Image(htdocs:SIPSIMPLE-client.png, align=right, nolink)]] SIP SIMPLE client is Python software library built on top of PJSIP that together with middleware allows for easy development of Client/Server and Peer-to-Peer Internet communications end-points based on SIP SIMPLE family of protocols for voice, video, presence, instant messaging (IM) and file transfer capabilities. The software is provided under the [source:LICENSE GPL LICENSE] The goal of this project is to deliver the best open source Python library for rich featured SIP end-points, while hiding the complex underlying functionality behind an easy to use high-level application-programming interface. This package supports to the SDP negotiation, audio codecs and NAT traversal functionality provided by PJSIP and will thus deliver rich communications combining instant messaging (IM), voice and video streams. It also supports file transfer and multi-party chat sessions using MSRP protocol, publication and subscription for rich presence information such as availability, moods, activities and geo-location, management for presence rules, resource lists, RLS services using XCAP protocol. == Background == SIP stands for 'Sessions Initiation Protocol', an IETF standard described by [http://tools.ietf.org/html/rfc3261 RFC 3261]. SIP is an application-layer control protocol that can establish, modify and terminate multimedia sessions such as Internet telephony calls (VoIP). Media can be added to (and removed from) an existing session. SIP transparently supports name mapping and redirection services, which supports personal mobility, users can maintain a single externally visible address identifier, which can be in the form of a standard email address or E.164 telephone number regardless of their physical network location. SIP allows the endpoints to negotiate and combine any type of session they mutually understand like video, instant messaging (IM), file transfer, desktop sharing and provides a generic event notification system with real-time publications and subscriptions about state changes that can be used for asynchronous services like presence, message waiting indicator and busy line appearance. == Features == The software allows you to create elegant real-time communications applications without having to read [http://www.rfc3261.net the +1200 RFC documents] behind it. As a library with a high-level [wiki:PyPJUADesign API], the toolkit can be used to add voice, IM and Presence functionality to any network devices as long as Python/C environment is supported by such platform. Additional to the SIP standards implemented by the underlying PJSIP library, this project implements: * XCAP protocol [http://www.tools.ietf.org/html/rfc4825 RFC4825] * MSRP protocol [http://tools.ietf.org/html/rfc4975 RFC4975] * MSRP protocol relay extension [http://tools.ietf.org/html/rfc4976 RFC4976] * Rich Presence Information Data model and Format (RPIDF) [http://tools.ietf.org/html/rfc3856 RFC3856], [http://tools.ietf.org/html/rfc3863 RFC3863 ], [http://tools.ietf.org/html/rfc4479 RFC4479] * XCAP-diff event package [http://www.ietf.org/internet-drafts/draft-ietf-simple-xcap-diff-09.txt draft-ietf-simple-xcap-diff-09] * Watcher-info [http://tools.ietf.org/html/rfc3857 RFC3857], [http://tools.ietf.org/html/rfc3858 RFC3858] * Conference [http://tools.ietf.org/html/rfc4575 RFC4575] * Message summary [http://tools.ietf.org/html/rfc3842 RFC3842] * Presence rules [http://www.tools.ietf.org/html/rfc5025 RFC5025] * Resource-lists and RLS-services [http://www.tools.ietf.org/html/rfc4826 RFC4826] * PIDF manipulation [http://www.tools.ietf.org/html/rfc4827 RFC4827] * Bonjour multicast DNS [http://www.ietf.org/internet-drafts/draft-lee-sip-dns-sd-uri-03.txt draft-lee-sip-dns-sd-uri-03] * Locating SIP services [http://tools.ietf.org/html/rfc3263 RFC3263] * MSRP ad-hoc multi-party chat sessions [http://tools.ietf.org/html/draft-ietf-simple-chat-03 draft-ietf-simple-chat-03] == Documentation == For download and installation instructions, API description and other documentation see the files under docs/ directory. * [wiki:SipInstallation Installation installation guide]. * [wiki:SipApiDocumentation API documentation] API] documentation * [wiki:SipMiddleware Middleware design] * [wiki:SipTesting Testing Testing] the client] client == Support == The project is developed and supported by [http://ag-projects.com AG Projects] via the wiki collaboration system available at http://sipsimpleclient.com. To request support you must open a ticket. To open ticket please [/register Register] first. The source browser and ticketing system are available only for registered users. If you wish to contribute and become an active developer of this project, send your request by email to pypjua-devel@ag-projects.com.