Thanks Seth for sharing this! Henry Sinnreich Adobe Systems, Inc.
On 4/26/08 12:17 AM, "Seth Johnson" <[EMAIL PROTECTED]> wrote: > > Exemplary work from David Sugar continues . . . > > > Seth > > > -------- Original Message -------- > Subject: New package GNU SIP Witch announced > Date: Sun, 20 Apr 2008 08:31:57 -0400 > From: David Sugar <[EMAIL PROTECTED]> > To: [EMAIL PROTECTED] > > > SIP (Session Initiation Protocol) is an IETF standard protocol for > interconnecting telephone devices over TCP/IP networks. GNU SIP Witch > is a call server which implements the SIP protocol standard while > supporting generic phone system features like call forwarding, hunt > groups and call distribution, call coverage and ring groups, holding > and call transfer, as well as offering SIP specific capabilities such > as presence and messaging. GNU SIP Witch will support use of secure > telephone extensions and enables communication privacy through the use > of peer-to-peer audio and video sessions directly between connected > endpoints. GNU SIP Witch also supports placing and receiving calls > directly with remote users over the public Internet without requiring > the use of mediating VOIP "service providers" in what is commonly > called SIP "Business-to-Business" (b2b) calling. > > GNU SIP Witch can be used together with and to interconnect common > free software and IETF standard compliant voice and video capable SIP > based desktop softphone applications such as Ekiga, Twinkle, Linphone, > and OpenWango, as well as most standard compliant SIP telephone > devices. When used together with a standard compliant SIP media > application server such as GNU Bayonne, GNU SIP Witch will be able to > offer users and remote callers access voice messaging and media > application services. In the future GNU SIP Witch will offer STUN > services and optional packet forwarding to facilitate interconnection > when behind NAT's and firewalls in IPV4 networks. GNU SIP Witch also > supports IPV6. > > GNU SIP Witch is not a SIP proxy, a multi-protocol telephone server, > or a IP-PBX, and does not try to address the same things like > asterisk, yate, or GNU bayonne2, all of which make use of direct media > processing where media connections and streaming are at least > initially established between each endpoint and the IP-PBX server > itself. Direct media processing adds additional latency, and by > introducing a central point where all media streams can be processed, > compromises both the privacy of calls and security of encrypted > telephone sessions. > > Instead, GNU SIP Witch focuses on doing just one thing as a pure SIP > call server, and will try to do that one thing very well. My goal is > to focus on achieving a network scalable telephone architecture built > around the SIP protocol that can be deeply embedded, which can support > secure calling nodes, that can integrate well with other SIP > based/standards compliant components, and, by not engaging in media > processing, that is not license encumbered by the use of "mandated" > patent encumbered and proprietary telephony media codecs. > > The initial release of GNU SIP Witch (0.1.0) only offers support of > SIP registration, multi-target registration, authentication peering > over SIP, querying of registered user agents, basic audio and video > call processing between locally registered user agents with call > distribution for multi-target registrations, and basic SIP instant > messaging. > > GNU SIP Witch requires the GNU oSIP library and eXosip extension > library, and the (GNU) uCommon/GNU Common C++ 2.0 core library. GNU > SIP Witch is offered under the terms of the GNU General Public License > Version 3 or later, and has no dependencies on non-free software. GNU > SIP Witch can be compiled and used on any GNU/Linux distribution > supporting GCC 2.95 or later, has been tested with OpenSolaris, > Free/Open/NetBSD, OS/X, QNX Nutrino, and can be built for use on > Microsoft Windows targets using Debian GNU/Linux hosted MinGW32 > toolchains. GNU SIP Witch is a free software package that is part of > the GNU Project and the GNU Telecom Subsystem. > > Downloading Source: > > GNU SIP Witch ftp://ftp.gnu.org/gnu/sipwitch > GNU uCommon ftp://ftp.gnu.org/gnu/commoncpp > GNU oSIP2 ftp://ftp.gnu.org/gnu/osip > libeXosip2 > http://download.savannah.nongnu.org/releases/exosip > > Web Resources: > > http://www.gnu.org/software/gnucomm > http://www.gnutelephony.org > http://savannah.gnu.org/projects/gnucomm > > Mailing Lists and email contacts: > > mailto:[EMAIL PROTECTED] > http://lists.gnu.org/mailman/listinfo/bug-gnucomm > > _______________________________________________ > p2p-hackers mailing list > [email protected] > http://lists.zooko.com/mailman/listinfo/p2p-hackers _______________________________________________ p2p-hackers mailing list [email protected] http://lists.zooko.com/mailman/listinfo/p2p-hackers
