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UPGRADE.txt
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UPGRADE.txt
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=====================================================================
=== Information for upgrading from Zaptel 1.2 or 1.4 to DAHDI 2.0 ===
=====================================================================
Upgrading from Zaptel to DAHDI is fairly straightforward; install this
package using the installation instructions, and then reconfigure and
rebuild Asterisk; Asterisk 1.4 releases later than 1.4.21, and all
releases of Asterisk 1.6, will automatically use DAHDI in preference
to Zaptel, even if Zaptel is still installed on the system.
Important notes about upgrading:
* The Zaptel package, which included both kernel modules and userspace
tools for configuring and managing the modules, has been split into
two packages:
dahdi-linux: kernel modules
dahdi-tools: userspace tools
In addition, there is a dahdi-linux-complete package that contains both
dahdi-linux and dahdi-tools for simplified installation.
Note: The dahdi-linux and dahdi-tools packages have *separate*
version numbers; they will not be released 'in sync', and it is
perfectly acceptable to use (for example) dahdi-tools 2.0.6 with
dahdi-linux 2.0.11. The dahdi-linux-complete package version number will
always include *both* of these version numbers so that you will know
what is included in it.
Notes about the dahdi-linux package:
* The primary kernel modules have changed names; the new names are:
zaptel.ko -> dahdi.ko
ztd-eth.ko -> dahdi_dynamic_eth.ko
ztd-loc.ko -> dahdi_dynamic_loc.ko
ztdummy.ko -> dahdi_dummy.ko
ztdynamic.ko -> dahdi_dynamic.ko
zttranscode.ko -> dahdi_transcode.ko
* The kernel modules for card drivers have *not* changed names,
although the wcusb and torisa drivers are no longer included.
* This package no longer includes the 'menuselect' utility for
choosing which modules to build; all modules that can be built are
built automatically.
* It is no longer possible to select a software echo canceler at
compile time to build into dahdi.ko; all four included echo
cancelers (MG2, KB1, SEC and SEC2) are built as loadable modules,
and if the Digium HPEC binary object file has been placed into the
proper directory the HPEC module will be built as well. Any or all
of these modules can be loaded at the same time, and the echo
canceler to be used on the system's channels can be configured using
the dahdi_cfg tool from the dahdi-tools package.
Note: It is *mandatory* to configure an echo canceler for the
system's channels using dahdi_cfg unless the interface cards in use
have echo canceler modules available and enabled. There is *no*
default software echo canceler with DAHDI.
Notes about the dahdi-tools package:
* Many tool names have changed:
ztcfg -> dahdi_cfg
ztmonitor -> dahdi_monitor
ztscan -> dahdi_scan
ztspeed -> dahdi_speed
zttest -> dahdi_test
zttool -> dahdi_tool
zapconf -> dahdi_genconf (deprecates genzaptelconf)
* The system configuration file has moved from /etc/zaptel.conf to
/etc/dahdi/system.conf.
* The dahdi_cfg tool can now be used to select an echo canceler on a
channel-by-channel basis in the system configuration file; see
system.conf.sample for examples of how to do this.
* The configuration for XPP init_card_* scripts is done now
in /etc/dahdi/xpp.conf and uses a simple syntax (example included).
For PRI modules, the 'pri_protocol' setting, determines how
to configure it (E1/T1).
* In Astribank PRI modules, the LED behaviour represents which ports
are *CLOCK MASTER* (red color) and which are *CLOCK SLAVE* (green color).
Usually (but not always), this corresponds to the NT/TE settings in Asterisk.