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AstRecipes»Compiling Asterisk 1.2 with TDM400 and H323





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AstRecipes » Compiling Asterisk 1.2 with TDM400 and H323

This recipe shows how to:
star Compile Asterisk 1.2 (works fine with 1.2.4)
star Add the H.323 modules
star Start a TDM400 card with 1 FXS and 1 FXO port

This recipe was tested on CentOS 3.5 (kernel 2.4).

I suppose all sources will be downloaded and compiled in /src.

If you are looking for information on installing Asterisk 1.4, see Compiling Asterisk 1.4 with TDM400 and H323.

Downloading and compiling Asterisk
First we build the zaptel drivers:

cd /src
wget http://ftp.digium.com/pub/zaptel/zaptel-1.2.3.tar.gz
tar zxvf zaptel-1.2.3.tar.gz
cd zaptel-1.2.3
make
make install
cd ..

Now we build libpri:

wget http://ftp.digium.com/pub/libpri/libpri-1.2.2.tar.gz
tar zxvf libpri-1.2.2.tar.gz
cd libpri-1.2.2
make
make install
cd ..

Now we build Asterisk itself:
Please note that by 'make samples' you'll delete you existing configuration - Make a backup first!

wget http://ftp.digium.com/pub/asterisk/asterisk-1.2.4.tar.gz
tar zxvf asterisk-1.2.4.tar.gz
cd asterisk-1.2.4
make
make install
make samples

Now we build Asterisk addons: (optional)

wget http://ftp.digium.com/pub/asterisk/asterisk-addons-1.2.1.tar.gz
cd asterisk-addons-1.2.1
make
make install

Now we install Asterisk sounds too:

wget http://ftp.digium.com/pub/asterisk/asterisk-sounds-1.2.1.tar.gz
cd asterisk-sounds-1.2.1
make install

Compiling H.323 drivers
The chan_h323 divers requires OpenH323 and a support library named PwLib. Make sure to download those exact versions! I use links to find the correct download URL.

cd /src
links http://prdownloads.sourceforge.net/openh323/
wget http://umn.dl.sourceforge.net/sourceforge/openh323/pwlib-v1_9_0-src-tar.gz
tar zxvf pwlib-v1_9_0-src-tar.gz
cd pwlib_v1_9_0/
./configure
make
make install
make opt
PWLIBDIR=/src/pwlib_v1_9_0
export PWLIBDIR

Now we fetch and compile OpenH323. Compilation will take quite a while, but that's okay.

cd /src
links http://prdownloads.sourceforge.net/openh323/
wget http://umn.dl.sourceforge.net/sourceforge/openh323/openh323-v1_17_1-src-tar.gz
tar zxvf openh323-v1_17_1-src-tar.gz
cd openh323_v1_17_1/
./configure
make
make opt
make install
OPENH323DIR=/src/openh323_v1_17_1/
export OPENH323DIR

It is very important to set PWLIBDIR and OPENH323DIR, because such variables will be used for further compiling.

Now we build the channel driver:

cd /src/asterisk-1.2.4/chnnels/h323/
make
make opt
cd ..
cd ..
make install

OpenH323 generates its libs in /usr/local/lib but my Linux uses /usr/lib for shared libraries, we'll need to copy the genberated libraries from /usr/local/lib to /usr/lib.

cp /usr/local/lib/* /usr/lib

Now we make sure the channel driver exists and is loadable:

ldd /usr/lib/asterisk/modules/chan_h323.so

There should be no missing references at this point.

Startingthe TDM400
I have a TDM 400 with 1 FXS channel on port 1 and 1 FXO channel on port 4.

I create the following files:
/etc/zaptel.conf

loadzone = it
defaultzone=it
fxoks=1
fxsks=4

/etc/asterisk/zapata.conf

[channels]
language=en
;
; FXS - telefono analogico
;
signalling=fxo_ks
context=interni_analogici
group=1
callwaiting=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
channel => 1
;
; FXO - linea
;
busydetect=yes
busycount=5
signalling=fxs_ks
context=rete_pubblica
group=2
channel => 4

I start the driver by typing

modprobe zaptel
modprobe wctdm

And I expect no error messages save the correct output on /var/log/messages, something like:
Oct 15 07:58:58 beth-pbx kernel: Zapata Telephony Interface Registered on major 196
Oct 15 07:59:09 beth-pbx kernel: PCI: Found IRQ 9 for device 01:01.0
Oct 15 07:59:09 beth-pbx kernel: Freshmaker version: 73
Oct 15 07:59:09 beth-pbx kernel: Freshmaker passed register test
Oct 15 07:59:09 beth-pbx kernel: Module 0: Installed -- AUTO FXS/DPO
Oct 15 07:59:09 beth-pbx kernel: Module 1: Not installed
Oct 15 07:59:09 beth-pbx kernel: Module 2: Not installed
Oct 15 07:59:09 beth-pbx kernel: Module 3: Installed -- AUTO FXO (FCC mode)
Oct 15 07:59:09 beth-pbx kernel: Found a Wildcard TDM: Wildcard TDM400P REV I (2 modules)
Oct 15 07:59:09 beth-pbx kernel: Registered tone zone 0 (United States / North America)

Starting it all together
To run Asterisk type:

ztcfg -v
asterisk -vvvvvvvvvvvvvvvvvvvvvvvvvvc

Asterisk should load and start.
The ztcfg command is needed to applythe configuration information in /etc/zaptel.conf to the zaptel driver.

When you are done with it, type "stop now".