libpri -- An implementation of Primary Rate ISDN<hr>
<a href="http://www.asterisk.org/">http://www.asterisk.org/</a><hr>
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.
</listing>