asterisk users - Feb 2008 - Can call in but cannot call out (CHANUNAVAIL): TE410 + Asterisk 1.4.13 + Zaptel 1.4.6 + Libpri 1.4.2

I encountered this strange problem which is I can call into Asterisk box
but I cannot call out.

I was successful before using exactly the same euroISDN line but with
TE110 and different versions of Asterisk.

This time, I am using:
. TE410
. Asterisk 1.4.13
. Zaptel 1.4.6
. Libpri 1.4.2

1) I put the following into extensions.conf to get to the outside line
   exten => 0,1,Dial(Zap/1)


2) When I hit '0' on the phone, it came back like this on the console:

[Feb 29 18:15:40] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
rxwink
  == Parsing '/etc/asterisk/users.conf': Found
    -- Executing [0 at default:1] Dial("SIP/5166-b7b0caa0",
"Zap/1") in new
stack
    -- Requested transfer capability: 0x00 - SPEECH
    -- Called 1CLI>
    -- Zap/1-1 is proceeding passing it to SIP/5166-b7b0caa0
    -- Channel 0/1, span 1 got hangup request, cause 31
[Feb 29 18:16:12] WARNING[7365]: app_dial.c:746 wait_for_answer: Unable
to forward voice or dtmf
    -- Hungup 'Zap/1-1'
[Feb 29 18:16:12] NOTICE[7365]: cdr.c:434 ast_cdr_free: CDR on channel
'Zap/1-1' not posted
  == Everyone is busy/congested at this time (1:0/0/1)
  == Auto fallthrough, channel 'SIP/5166-b7b0caa0' status is
'CHANUNAVAIL'


3) When I did "reload chan_zap.so"
    -- Reloading module 'chan_zap.so' (Zapata Telephony)
  == Parsing '/etc/asterisk/zapata.conf': Found
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
switchtype
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
pridialplan
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
prilocaldialplan
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
overlapdial
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
priindication
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
signalling
    -- Reconfigured channel 1, ISDN PRI signalling
    [...]
    -- Reconfigured channel 31, ISDN PRI signalling
[Feb 29 18:24:31] WARNING[7146]: chan_zap.c:11120 process_zap: Ignoring
rxwink
  == Parsing '/etc/asterisk/users.conf': Found


3) Something dodgy when I did a # cat /proc/zaptel/1
It complains that the channels are all "In Use" and I am only using
span
1
Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" HDB3/CCS/CRC4 ClockSour
ce

           1 TE4/0/1/1 Clear (In use)
           2 TE4/0/1/2 Clear (In use)
          [...]
          15 TE4/0/1/15 Clear (In use)
          16 TE4/0/1/16 HDLCFCS (In use)
          17 TE4/0/1/17 Clear (In use)
          [...]

Hi , i've a problem with the dispatcher module of Openser, for the load
balancing for asterisk 
The schema of the network is this :

                                               Firewall   (public ip:
199.199.199.199:5060)
                                                               |
                                                               |
                                               -------------------
                               Pc1
pc2

Pc1: 192.168.0.1:5060 Asterisk
Pc2:192.168.0.3:5060 Asterisk
Pc1:192.168.0.2:5060 Openser

The ip public  is natted with  Openser 

The dispatcher.list is:
1 sip:192.168.0.1:5060
1 sip:192.168.0.3:5060

Openser.cfg:
route{ 

       if ((method=="INVITE") ){ 
             ds_select_dst("1","4"); # 4 = round-robin 

             t_relay(); 
             exit(); 
       } 
} 


In asterisk for test there is an ivr ,and when I make  a call from an other
site to this public ip, ast answer but after few seconds I see from the log
of the pc01 the the call hang but  from the remote asterisk (the one where I
make the call) the call remain up.
The configuration of openser is correct ?
thanks
 

__________ Information from ESET NOD32 Antivirus, version of virus signature
database 2910 (20080228) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com