[asterisk-announce] dahdi-linux 2.1.0 and dahdi-tools 2.1.0 released

[Asterisk Team]

The Asterisk development team is pleased to announce the release of versions
2.1.0 of both dahdi-linux and dahdi-tools. DAHDI now includes a native driver
for the B410P four port BRI module. The Digium Asterisk Hardware Device
Interface (DAHDI) is a collection of drivers and utilities for connecting your
Asterisk installation to the Public Switched Telephone Network (PSTN).
dahdi-linux is the package that contains the Linux kernel modules while
dahdi-tools contains the user mode scripts and utilities for working with
dahdi-linux.

DAHDI is supported by Asterisk versions 1.4.22 and greater as well as Asterisk
versions 1.6.0 and greater.

More detailed information about each of the packages is below.

====== dadhi-linux-2.1.0 ===================

Some of the highlights of the 2.1.0 release are:
* Added a new wcb4xxp driver to support ISDN BRI from within DAHDI.
* Added  hooks to simplify end-user installation of OSLEC as an echo canceler.
* ...and various other bug fixes and improvements.

You can find the complete change log online at:
http://downloads.digium.com/pub/telephony/dahdi-linux/ChangeLog-2.1.0

Known Issues:
* Reference counting is not currently done on echo canceler modules, and
   therefore it is possible for an administrator to unload an echo canceler
   module that is in use which could result in a crash. It is recommended
   to use /etc/init.d/dahdi start|stop to load and unload your drivers to
   eliminate exposure to this issue. Bug [1]13504.
* If you have configured your wcb4xxp spans and receive messages that "No
   D-channels  available!",  you  might  need to update your asterisk
   installation in order to tell it to ignore the layer 1 link state on the
   BRI spans. Bug [2]14031.

===== dahdi-tools-2.1.0 ====================

Some of the highlights of the 2.1.0 release are:
* Added support for the new wcb4xxp driver.
* DTMF twist levels now meet the TBR-21 standard for EU countries.

You can find the complete change log online at:
http://downloads.digium.com/pub/telephony/dahdi-tools/ChangeLog-2.1.0

===== dahdi-linux-complete-2.1.0+2.1.0 =====

This release combines dahdi-linux and dahdi-tools into a single download,
one-package installation process. Users who are installing DAHDI for the first
time don't have to download and install the dahdi-linux and dahdi-tools
packages separately.

References
1. http://bugs.digium.com/view.php?id=13504
2. http://bugs.digium.com/view.php?id=14031