chan_dahdi.conf

[trunkgroups]

[channels]

signalling = fxo_ks
context = from-chanbank
;channel => 1-16,21-24
;channel => 1-24
;channel => 1-20

usecallerid=yes
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=no
echocancelwhenbridged=no
;channel => 1-16,21-24
;channel => 1-24
channel => 1-20

;callwaiting=no
;threewaycalling=no
;transfer=no
;channel => 1-6,9-14

signalling = fxs_ks
context = from-chanbank-fxo-21
debounce = 200
hanguponpolarityswitch=yes
channel => 21

signalling = fxs_ks
context = from-chanbank-fxo-22
debounce = 200
hanguponpolarityswitch=yes
channel => 22

signalling = fxs_ks
context = from-chanbank-fxo
debounce = 200
hanguponpolarityswitch=yes
channel => 23-24

signalling = pri_net
switchtype = 4ess
context = from-definity
echocancel = no
echocancelwhenbridged = no
group = 2
channel => 25-47

signalling = pri_net
switchtype = national
context = from-cisco
echocancel = no
echocancelwhenbridged = no
group = 3
channel => 49-71

signalling = pri_net
switchtype = national
context = from-cisco2
group = 4
channel => 73-95