13beaacc80
Some BRI devices in France insist on checking TEI's when in point-to-point
mode. If they don't get a response for TEI 0 they drop layer 1 even
though libpri keeps trying to bring layer 2 up.
* Made q921_mdl_receive() handle TEI check request messages in TE-PTP
mode. Had to change q921_mdl_send()/Q921_INIT() because the PTP modes do
not setup a link structure specifically for MDL as the PTMP modes do.
* Fixed q921_tei_check()/t201_expire() to check TEI's even if the network
side doesn't have any assigned. This should make TE's that request the
TEI verify procedure (Q.921 Section 5.3.5) happy when the network side
doesn't have any TEI's allocated.
PRI-165
Reported by: Denis Alberto Martinez
Patches:
jira_pri_165_ptp_respond_tei_check.patch (license #5621) patch uploaded by rmudgett
Review: https://reviewboard.asterisk.org/r/3434/
git-svn-id: https://origsvn.digium.com/svn/libpri/branches/1.4@2318 2fbb986a-6c06-0410-b554-c9c1f0a7f128
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.