249baf1db3
Update documentation to the effect that HWEC is not enabled by default and must be enabled manually if desired via "echocanceller" in system.conf. git-svn-id: http://svn.astersk.org/svn/dahdi/tools/trunk@9528 17933a7a-c749-41c5-a318-cba88f637d49
103 lines
3.9 KiB
Plaintext
103 lines
3.9 KiB
Plaintext
Upgrade Notes
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-------------
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Information for upgrading from Zaptel 1.2 or 1.4 to DAHDI 2.0
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Upgrading from Zaptel to DAHDI is fairly straightforward; install this
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package using the installation instructions, and then reconfigure and
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rebuild Asterisk; Asterisk 1.4 releases later than 1.4.21, and all
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releases of Asterisk 1.6, will automatically use DAHDI in preference
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to Zaptel, even if Zaptel is still installed on the system.
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Important notes about upgrading:
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The Zaptel package, which included both kernel modules and userspace
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tools for configuring and managing the modules, has been split into
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two packages:
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* dahdi-linux: kernel modules
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* dahdi-tools: userspace tools
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In addition, there is a dahdi-linux-complete package that contains both
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dahdi-linux and dahdi-tools for simplified installation.
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NOTE: The dahdi-linux and dahdi-tools packages have *separate*
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version numbers; they will not be released 'in sync', and it is
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perfectly acceptable to use (for example) dahdi-tools 2.0.6 with
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dahdi-linux 2.0.11. The dahdi-linux-complete package version number will
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always include *both* of these version numbers so that you will know
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what is included in it.
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DAHDI-Linux
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~~~~~~~~~~~
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Module Names
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^^^^^^^^^^^^
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The primary kernel modules have changed names; the new names are:
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zaptel.ko -> dahdi.ko
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ztd-eth.ko -> dahdi_dynamic_eth.ko
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ztd-loc.ko -> dahdi_dynamic_loc.ko
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ztdummy.ko -> dahdi_dummy.ko
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ztdynamic.ko -> dahdi_dynamic.ko
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zttranscode.ko -> dahdi_transcode.ko
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* The kernel modules for card drivers have *not* changed names,
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although the wcusb and torisa drivers are no longer included.
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* This package no longer includes the 'menuselect' utility for
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choosing which modules to build; all modules that can be built are
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built automatically.
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Echo Canceller Modules
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^^^^^^^^^^^^^^^^^^^^^^
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It is no longer possible and needed to select a software echo canceler
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at compile time to build into dahdi.ko; all four included echo
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cancelers (MG2, KB1, SEC and SEC2) are built as loadable modules.
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If the Digium HPEC binary object file has been placed into the
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proper directory the HPEC module will be built as well.
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Any or all of these modules can be loaded at the same time, and the echo
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canceler to be used on the system's channels can be configured using
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the dahdi_cfg tool from the dahdi-tools package.
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IMPORTANT: It is *mandatory* to configure an echo canceler for the system's
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channels using dahdi_cfg. There is *no* default echo canceler with DAHDI, not
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even hardware echo cancellation modules. See
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<<_echo_cancellers,section on echo cancellers>> in sample system.conf.
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DAHDI-Tools
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~~~~~~~~~~~
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Many tool names have changed:
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ztcfg -> dahdi_cfg
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ztmonitor -> dahdi_monitor
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ztscan -> dahdi_scan
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ztspeed -> dahdi_speed
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zttest -> dahdi_test
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zttool -> dahdi_tool
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zapconf -> dahdi_genconf (deprecates genzaptelconf)
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* The system configuration file has moved from /etc/zaptel.conf to
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<<_sample_system_conf,/etc/dahdi/system.conf>>.
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* The dahdi_cfg tool can now be used to select an echo canceler on a
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channel-by-channel basis in the system configuration file; see
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system.conf.sample for examples of how to do this.
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* The configuration for XPP init_card_* scripts is done now
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in /etc/dahdi/xpp.conf and uses a simple syntax (example included).
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For PRI modules, the 'pri_protocol' setting, determines how
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to configure it (E1/T1).
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* In Astribank PRI modules, the LED behaviour represents which ports
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are *CLOCK MASTER* (red color) and which are *CLOCK SLAVE* (green color).
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Usually (but not always), this corresponds to the NT/TE settings in Asterisk.
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* The /etc/sysconfig/zaptel (or /etc/default/zaptel file, depending
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on your distribution) is now split into two separate files:
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/etc/dahdi/modules control which modules are loaded and module options are
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set via /etc/modprobe.d/dahdi.
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