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Jeff Peeler 18fa4716a5 Add service maintenance message support 
This adds support for two new message types: Service and Service Acknowledge.
When a channel receives a service message it will either take the channel in
or out of service and then send a service acknowledgment. Although not
enforced here (enforced in chan_dahdi), the service messages are only supported
with switch types 4ess/5ess. The required Asterisk changes will be coming next.

(issue #3450)
Reported by: cmaj


git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@732 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2009-04-14 15:05:21 +00:00
build_tools Use the correct branch integrated property when generating the version string. 2009-03-13 01:05:54 +00:00
compat.h remove extraneous svn:executable properties 2005-11-29 18:39:18 +00:00
compiler.h Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
copy_string.c Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
libpri.h Add service maintenance message support 2009-04-14 15:05:21 +00:00
LICENSE remove extraneous svn:executable properties 2005-11-29 18:39:18 +00:00
Makefile Make install paths use libdir, like libss7 2008-08-06 18:20:51 +00:00
pri_facility.c Comment changes and some string content corrections. 2009-04-02 19:33:38 +00:00
pri_facility.h Merging in additional Q.SIG features in #13454. Includes Q.SIG physical/logical channel mapping support, extended coding of Q.SIG name operations (calling name), and call rerouting support via added dialplan application. 2008-10-17 16:13:42 +00:00
pri_internal.h Add service maintenance message support 2009-04-14 15:05:21 +00:00
pri_q921.h Add service maintenance message support 2009-04-14 15:05:21 +00:00
pri_q931.h Add service maintenance message support 2009-04-14 15:05:21 +00:00
pri_timers.h Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
pri.c Add service maintenance message support 2009-04-14 15:05:21 +00:00
pridump.c Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
prisched.c Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
pritest.c Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
q921.c Add service maintenance message support 2009-04-14 15:05:21 +00:00
q931.c Add service maintenance message support 2009-04-14 15:05:21 +00:00
README Merged revisions 311 via svnmerge from 2006-02-15 18:01:03 +00:00
testprilib.c Merged revisions 610 via svnmerge from 2008-08-05 22:18:12 +00:00
TODO More TODO updates 2006-02-16 19:21:30 +00:00

README 

libpri: An implementation of Primary Rate ISDN

Written by Mark Spencer <markster@digium.com>

What is libpri?
===============

libpri is a C implementation of the Primary Rate ISDN specification.  It was
based on the Bellcore specification SR-NWT-002343 for National ISDN.  As of
May 12, 2001, it has been tested work with NI-2, Nortel DMS-100, and 
Lucent 5E Custom protocols on switches from Nortel and Lucent.

What is the license for libpri?
===============================
libpri is distributed under the terms of the GNU General Public License, 
which permit its use and linking with other GPL'd software only.  
The GNU GPL is included in the file LICENSE in this directory.

As a special exception, libpri may also be linked to the OpenH323
library, so long as the entirity of the derivative work (as defined
within the GPL) is licensed either under the MPL of the OpenH323 license
or the GPL of libpri.

If you wish to use libpri in an application for which the GPL is not 
appropriate (e.g. a proprietary embedded system), licenses for libpri 
under more flexible terms can be readily obtained through Digium, Inc. 
at reasonable cost.


How do I report bugs or contribute?
===================================
For now, contact the author directly.  In the future if there is 
sufficient interest, we will setup a mailing list.

Does anything use this library so far?
======================================
Yes, the Asterisk Open Source PBX does.  http://www.asterisk.org

Also, the Zapata library has hooks for it.  http://www.zapatatelephony.org

Special thanks
==============
Special thanks to Jim Dixon <jim@lambdatel.com> for his help in 
testing and fixing the implementation.