Need help with TRIXBOX

Hi, I 've setup a trixbox PC, this is the hardware:
P4(HT)/1GB/80GB, TE110P
I'm located in El Salvador, Central America and I'm using a E1 from Telefonica (a local provider)

Here's my problem, from all the reading I have made 2 zaptel.conf files, with one I can receive calls perfectly, but when I dial I receive the message "All circuits are busy, please try again later...". This is the log:

-- Going to extension s|1 because of immediate=yes
-- Accepting call from '78395107' to 's' on channel 0/9, span 1
-- Executing NoOp("Zap/9-1", "No DID or CID Match") in new stack
-- Executing Answer("Zap/9-1", "") in new stack
-- Executing Wait("Zap/9-1", "2") in new stack
-- Executing Playback("Zap/9-1", "ss-noservice") in new stack
-- Playing 'ss-noservice' (language 'en')
-- Executing SayAlpha("Zap/9-1", "") in new stack
-- Channel 0/9, span 1 got hangup request
Hungup 'Zap/9-1'

With the other file I can dial out to any phone but if someone calls in they receive the message "The number you have dialed is not in service, please check your number and try again..."
this is the log:

-- Executing Goto("SIP/2504-08ad76c8", "from-pstn|s|1") in new stack
-- Goto (from-pstn,s,1)
-- Executing NoOp("SIP/2504-08ad76c8", "No DID or CID Match") in new stack
-- Executing Answer("SIP/2504-08ad76c8", "") in new stack
-- Executing Wait("SIP/2504-08ad76c8", "2") in new stack
-- Executing Playback("SIP/2504-08ad76c8", "ss-noservice") in new stack
-- Playing 'ss-noservice' (language 'en')
-- Executing SayAlpha("SIP/2504-08ad76c8", "") in new stack

Ok , now these are the 2 zapata.conf files

///////////////////////////////////////////////////////////////////
;ONLY RECEIVE
[trunkgroups]

[trunkgroups]

[channels]

language=en
context=from-zaptel
signalling=pri_cpe
channel => 1-15,17-31
switchtype=5ess
;rxwink=300

usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
echotraining=800
rxgain=0.0
txgain=0.0

group=0
callgroup=1
pickupgroup=1
immediate=no

;faxdetect=both
faxdetect=incoming
;faxdetect=outgoing
;faxdetect=no

;Include genzaptelconf configs
#include zapata-auto.conf

group=1

;Include AMP configs
#include zapata_additional.conf
//////////////////////////////////////////////////////////////

;ONLY DIAL OUT
[trunkgroups]

[channels]

language=en
context=from-trunk
signalling=pri_cpe
switchtype=5ess
rxwink=300
usecallerid=yes
hidecallerid=no
callwaiting=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
echocancel=yes
rxgain=0.0
txgain=0.0
immediate=yes
usecallingpres=yes
callreturn=yes
echocancelwhenbridged=no
echotraining=800
;usedistinctiveringdetection=yes

group=0
signalling=pri_cpe
context=from-trunk
channel => 1-15,17-31
;callgroup=1
;pickupgroup=1

;faxdetect=both
faxdetect=incoming
;faxdetect=outgoing
;faxdetect=no

;Include genzaptelconf configs
#include zapata-auto.conf

group=1

;Include AMP configs
#include zapata_additional.conf
/////////////////////////////////////////////////////////////

Please help, thanks in advance