[HELP] Incoming call from PRI to digital recept - NO SOUND

Anyone with experiance of PRI installations and Asterisk?

Just got an 30 channel PRI line installed to our work. Hooked up through a digium-Wildcard TE110P and Asterisk SVN-branch-1.2-r48272. Country is Sweden.

A small numbers of people calling in to our digital receptionist just get silence or the phone just keeps on ringing. If the ringing stops they cant here the digital recptionists recording.
No input from the person calling in the form of keys pressed is working.

If the same person does an direct in dial to an extension everthing works ok but not when he calls my main number that is directed to the digital receptionist.

This is my settings
== zaptel.conf ===
loadzone=se
defaultzone=se

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

== zapata.conf ===
[channels]
language=se
switchtype=euroisdn
pridialplan=unknown
signalling=pri_cpe
callgroup=1
pickupgroup=1
immediate=no
echocancel=yes
echocancelwhenbridged=yes
callerid=asreceived
usecallingpres=yes
internationalprefix = 00
nationalprefix = 0

context=from-pri

group = 1
channel => 1-15,17-31

Dialplan

exten => s,1,Ringing
exten => s,2,Wait(5)
exten => s,3,GotoIf($[${DIALSTATUS} = ANSWER]?6)
exten => s,4,Answer
exten => s,5,Wait(1)
exten => s,6,SetVar(LOOPED=1)
exten => s,7,GotoIf($[${LOOPED} > 2]?hang,1)
exten => s,8,SetVar(DIR-CONTEXT=general)
exten => s,9,DigitTimeout(3) ; Main-Opening
exten => s,10,ResponseTimeout(7)
exten => s,11,Background(custom/aa_1)
exten => t,1,Goto(ext-queues,1,1) ; jump


Any idea what might be wrong.


Ps! Its not a problem related to NAT since all calls come directly from my tlephony provider and its PRI line.

Found out what was wrong.
My server answered the calls to quickly.

Added:
Ringing
Wait(5)
In the dialplan of incoming calls. And now all calls is picked up and answered as it should.