Digium (E1) TE110P doesn't do external call

Hi all

I have configured a asterisk 1.4.18 with Digium TE110P / E1 ISDN.
I get to receive external call, but don’t get go out.
When I try to do a external call, I get this message:

– Requested transfer capability: 0x00 - SPEECH
– Called g0/963258
– Channel 0/1, span 1 got hangup, cause 31
– Hungup ‘Zap/1-1’
== Everyone is busy/congested at this time (1:0/0/1)

However all lines are not busy. My config are as follows;


zaptel.conf
span=1,1,0,ccs,hdb3,crc4
bchan=1-15,17-31
dchan=16

Global data

loadzone=br
defaultzone=br


zapata.conf

[channels]
pridialplan=unknown
prilocaldialplan=unknown
language = br
resetinterval = never
usecallerid = yes
hidecallerid = no
callwaiting = no
usecallingpres = yes
callwaitingcallerid = yes
threewaycalling = yes
transfer = yes
canpark = yes
cancallforward = yes
callreturn = yes
echocancelwhenbridged = yes
echocancel = yes
rxgain = 0.0
txgain = 0.0
overlapdial=no
callprogress=no
busydetec=yes
pulsedial=yes

group=0
callgroup = 0
pickupgroup = 0
context=from-zaptel
switchtype = euroisdn
dtmfmode=rfc2833
signalling=pri_cpe
channel = 1-15,17-31
callerid=<6234120500>

I appreciate any help.
Thanks.

Dears,

 This problem has been resolved.
 Wasn't my configuration, but our telephony services.

I thank you.