Asterisk in morocco

Hello

I am trying to install Asterisk in Morocco but I can not connect two BRI lines but there seems to be even physical connection. The two lines are running because if I connect to the old PBX operate normally.

My configuration is:

span=1,1,0,ccs,ami
bchan=1-2
hardhdlc=3
echocanceller=mg2,1-2

span=2,2,0,ccs,ami
bchan=4-5
hardhdlc=6
echocanceller=mg2,4-5

loadzone = fr
defaultzone = fr

and

[trunkgroups]
[channels]
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=no
echocancelwhenbridged=no
relaxdtmf=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
inmediate=no

group=1
context=default
switchtype = euroisdn
signalling = bri_cpe_ptmp
channel => 1-2
context=default