====== DAHDI ======

DAHDI provides the drivers for Digium and other common TDM telephony cards.

DAHDI was previously 'Zaptel'.

===== Configuration =====

''/etc/dahdi/system.conf''

<file>
# Autogenerated by /usr/sbin/dahdi_genconf on Mon May 23 20:50:01 2011
# If you edit this file and execute /usr/sbin/dahdi_genconf again,
# your manual changes will be LOST.
# Dahdi Configuration File
#
# This file is parsed by the Dahdi Configurator, dahdi_cfg
#
# Span 1: WCTDM/0 "Wildcard AEX800 Board 1" (MASTER) 
fxsks=1
echocanceller=mg2,1
fxsks=2
echocanceller=mg2,2
fxsks=3
echocanceller=mg2,3
fxsks=4
echocanceller=mg2,4
fxsks=5
echocanceller=mg2,5
fxsks=6
echocanceller=mg2,6
fxsks=7
echocanceller=mg2,7
fxsks=8
echocanceller=mg2,8

# Global data

loadzone	= us
defaultzone	= us
</file>

''/etc/asterisk/dahdi.conf''

<file>
[G0]
qualify=no
nat=no
context=from-outside
type=friend
;=description=Analog Trunks via AEX800
</file>

''/etc/asterisk/dahdi-channels.conf''

<file>
; Autogenerated by /usr/sbin/dahdi_genconf on Mon May 23 20:50:01 2011
; If you edit this file and execute /usr/sbin/dahdi_genconf again,
; your manual changes will be LOST.
; Dahdi Channels Configurations (chan_dahdi.conf)
;
; This is not intended to be a complete chan_dahdi.conf. Rather, it is intended
; to be #include-d by /etc/chan_dahdi.conf that will include the global settings
;

; Span 1: WCTDM/0 "Wildcard AEX800 Board 1" (MASTER) 
;;; line="1 WCTDM/0/0 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-outside
channel => 1
callerid=
group=
context=default

;;; line="2 WCTDM/0/1 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-outside
channel => 2
callerid=
group=
context=default

;;; line="3 WCTDM/0/2 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=0
context=from-outside
channel => 3
callerid=
group=
context=default

;;; line="4 WCTDM/0/3 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=1
context=from-outside
channel => 4
callerid=
group=
context=default

;;; line="5 WCTDM/0/4 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=1
context=from-outside
channel => 5
callerid=
group=
context=default

;;; line="6 WCTDM/0/5 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=1
context=from-outside
channel => 6
callerid=
group=
context=default

;;; line="7 WCTDM/0/6 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=1
context=from-outside
channel => 7
callerid=
group=
context=default

;;; line="8 WCTDM/0/7 FXSKS"
signalling=fxs_ks
callerid=asreceived
group=1
context=from-outside
channel => 8
callerid=
group=
context=default
</file>

===== Old Zaptel (Pre-DAHDI) Info =====

Recompile Zaptel Modules After Installation or After a Kernel Upgrade

Reference for zaptel stuff is the Digium Users Manual for the card you have.

<file>
vi /usr/local/sbin/rebuild_zaptel

</file>
change line 56 - directory is 1.4.9.2

<file>
rebuild_zaptel
</file>
----

Or the manual way:

<file>
wget http://downloads.asterisk.org/pub/telephony/zaptel/zaptel-1.4.12.1.tar.gz
cd /usr/src
tar -zxvf zaptel-1.4.12.1.tar.gz
cd zaptel-1.4.12.1

make clean
./configure
make menuselect
</file>

Enable the module you need for your card (wctdm24xxp for AEX800, wctdm for TDM400P) and the firmware needed by your card (VPMADT032 for EC module) and then save those changes.

<file>
make
make install
make config
</file>

Use 'modprobe' to load the proper module for your card.

Use /usr/local/sbin/genzaptelconf to generate the /etc/zaptel.conf file and verify:

<file>
# Span 1: WCTDM/0 "Wildcard AEX800 Board 1" (MASTER) 
fxsks=1
fxsks=2
fxsks=3
fxsks=4
fxsks=5
fxsks=6
fxsks=7
fxsks=8

# Global data

loadzone        = us
defaultzone     = us
</file>

With Asterisk stopped, stop and start the zaptel drivers:

<file>
service zaptel stop
service zaptel start
</file>

Verify channel configuration with:
<file>
ztcfg -vv
</file>

Use 'dmesg' to verify the proper loading of the zaptel modules.

Edit /etc/asterisk/zapata.conf to your needs:

<file>
[channels]
language=en
context=from-outside
switchtype=national
signalling=fxs_ks
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
rxgain=0.0
txgain=0.0
callgroup=1
pickupgroup=1
immediate=no

group=1
context=from-outside
channel => 1-8		#only include the channels that actually have phone lines connected
</file>

===== Performance Testing =====

http://www.cadvision.com/blanchas/Asterisk/ZaptelPerformanceTesting.html