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Richard Mudgett ad998f6f64 Prevent a CONNECT message from sending a CONNECT ACKNOWLEDGE in the wrong state. 
Filter the processing of the CONNECT message to prevent libpri from
sending a CONNECT ACKNOWLEDGE when the call is in an inappropriate state.
This can happen when we hang up an outgoing call after the other end has
sent a CONNECT but before we have processed the CONNECT.

(issue #17360)
Reported by: shawkris
Patches:
      issue17360_con_ack_v1.4.patch uploaded by rmudgett (license 664)


git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@1961 2fbb986a-6c06-0410-b554-c9c1f0a7f128
2010-09-08 00:10:05 +00:00
build_tools Use the correct branch integrated property when generating the version string. 2009-03-13 01:05:54 +00:00
doc Add Call Completion Suppplementary Service 2010-05-26 16:01:10 +00:00
asn1_primitive.c Made ASN.1 memory dump also display printable characters. 2009-06-03 22:51:42 +00:00
asn1.h ROSE ASN.1 facility encode and decode rewrite of existing messages. 2009-04-21 22:08:45 +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 pri_new_bri_cb() API - Create BRI D-channel with user defined I/O callbacks and data 2010-07-22 17:59:57 +00:00
LICENSE remove extraneous svn:executable properties 2005-11-29 18:39:18 +00:00
Makefile pritest hadn't been ported to DAHDI 2010-07-16 22:55:15 +00:00
pri_aoc.c support for sending ETSI advice of charge 2010-05-28 22:34:24 +00:00
pri_cc.c Add Call Completion Suppplementary Service 2010-05-26 16:01:10 +00:00
pri_facility.c Q.SIG calling name in FACILITY message not reported to the upper layer. 2010-06-04 22:45:59 +00:00
pri_facility.h support for sending ETSI advice of charge 2010-05-28 22:34:24 +00:00
pri_internal.h [regression] Calling Number assignment logic change in libpri 1.4.11. 2010-06-29 16:15:03 +00:00
pri_q921.h Merge of Q.921 rewrite branch for wider testing. 2010-01-13 19:37:59 +00:00
pri_q931.h ETSI Call Waiting support. 2010-05-28 18:43:57 +00:00
pri.c Don't crash in __pri_new_tei() if a GR303 subchannel creation fails. 2010-09-02 17:33:51 +00:00
pridump.c PTMP NT mode call reference value ambiguity. 2010-04-19 22:40:41 +00:00
prisched.c Add Call Completion Suppplementary Service 2010-05-26 16:01:10 +00:00
pritest.c pritest hadn't been ported to DAHDI 2010-07-16 22:55:15 +00:00
q921.c Reduced fake MDL-ERROR (Z) message severity to be visible only when debugging enabled. 2010-08-30 20:49:11 +00:00
q931.c Prevent a CONNECT message from sending a CONNECT ACKNOWLEDGE in the wrong state. 2010-09-08 00:10:05 +00:00
README Merged revisions 311 via svnmerge from 2006-02-15 18:01:03 +00:00
rose_address.c ROSE ASN.1 facility encode and decode rewrite of existing messages. 2009-04-21 22:08:45 +00:00
rose_etsi_aoc.c ETSI Advice Of Charge (AOC) event reporting. 2010-05-28 18:03:38 +00:00
rose_etsi_cc.c Add Call Completion Suppplementary Service 2010-05-26 16:01:10 +00:00
rose_etsi_diversion.c Add COLP support to libpri for ETSI PTP, ETSI PTMP, and Q.SIG. 2009-08-18 23:53:32 +00:00
rose_etsi_ect.c Add COLP support to libpri for ETSI PTP, ETSI PTMP, and Q.SIG. 2009-08-18 23:53:32 +00:00
rose_etsi_mwi.c ETSI Message Waiting Indication (MWI) support. 2010-05-28 21:50:14 +00:00
rose_internal.h ETSI Message Waiting Indication (MWI) support. 2010-05-28 21:50:14 +00:00
rose_other.c ROSE ASN.1 facility encode and decode rewrite of existing messages. 2009-04-21 22:08:45 +00:00
rose_q931.c ROSE ASN.1 facility encode and decode rewrite of existing messages. 2009-04-21 22:08:45 +00:00
rose_qsig_aoc.c Added Q.SIG Advice-Of-Charge encode/decode routines. 2009-04-21 23:32:13 +00:00
rose_qsig_cc.c Add Call Completion Suppplementary Service 2010-05-26 16:01:10 +00:00
rose_qsig_ct.c ROSE ASN.1 facility encode and decode rewrite of existing messages. 2009-04-21 22:08:45 +00:00
rose_qsig_diversion.c Corrected standard document reference. 2009-08-07 15:53:20 +00:00
rose_qsig_mwi.c ETSI Message Waiting Indication (MWI) support. 2010-05-28 21:50:14 +00:00
rose_qsig_name.c Calling name not successfully processed on inbound QSIG PRI calls from Mitel PBX 2010-07-16 16:37:07 +00:00
rose.c Add support to receive ECMA-164 2nd edition OID name ROSE messages. 2010-08-27 15:54:17 +00:00
rose.h ETSI Message Waiting Indication (MWI) support. 2010-05-28 21:50:14 +00:00
rosetest.c Add support to receive ECMA-164 2nd edition OID name ROSE messages. 2010-08-27 15:54:17 +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.