thx guys , i think i discovered the problem , it seems that i had to put the 
host=192.168.0.x in iax.conf and not host=dynamic ,,otherwise had to register 
the clients 


From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Tue, 26 Feb 2008 15:03:25 
+0200Subject: [asterisk-users] iax trunking problem


i have 2 asterisk servers one on CentOS and one on Fedora , i configured IAX 
trunking between the 2 servers so that i dial -say from a sip extension 2000 on 
fedora server to a sip extension 3000 on CentOS server the call seems to be 
established but hangup automatically after very short time and here is the iax2 
set debug command result on centos server and also my iax.conf and 
extension.conf and sip.conf files 
:**********************************************************************************************;the
 iax2 debug output Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 000 Type: IAX     
Subclass: NEW       Timestamp: 00004ms  SCall: 00001  DCall: 00000 
[192.168.0.25:4569]   VERSION         : 2   CALLED NUMBER   : 3000   
CODEC_PREFS     : ()   CALLING NUMBER  : 2000   CALLING PRESNTN : 0   CALLING 
TYPEOFN : 0   CALLING TRANSIT : 0   CALLING NAME    : Gres   LANGUAGE        : 
en   CALLED CONTEXT  : centos-context   USERNAME        : iax1Centos   FORMAT   
       : 4   CAPABILITY      : 65535   ADSICPE         : 2   DATE TIME       : 
2008-02-26  01:50:30Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 001 Type: IAX    
 Subclass: AUTHREQ   Timestamp: 00010ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]   AUTHMETHODS     : 3   CHALLENGE       : 667712244   
USERNAME        : iax1CentosRx-Frame Retry[ No] -- OSeqno: 001 ISeqno: 001 
Type: IAX     Subclass: AUTHREP   Timestamp: 00100ms  SCall: 00001  DCall: 
00001 [192.168.0.25:4569]   MD5 RESULT      : 8cbf698b6ea75a404e8ae981fdec0a16  
  -- Accepting AUTHENTICATED call from 192.168.0.25:       > requested format = 
ulaw,       > requested prefs = (),       > actual format = ulaw,       > host 
prefs = (),       > priority = mine    -- Executing [EMAIL PROTECTED]:1] 
Set('IAX2/iax1Centos-1', 'TIMEOUT(absolute)=10000') in new stack    -- Channel 
will hangup at 2008-02-26 19:01:22 UTC.    -- Executing [EMAIL PROTECTED]:2] 
Dial('IAX2/iax1Centos-1', 'sip/3000/20') in new stackTx-Frame Retry[000] -- 
OSeqno: 001 ISeqno: 002 Type: IAX     Subclass: ACCEPT    Timestamp: 00117ms  
SCall: 00001  DCall: 00001 [192.168.0.25:4569]   FORMAT          : 4[Feb 26 
18:14:42] WARNING[4581]: app_dial.c:1196 dial_exec_full: Unable to create 
channel of type 'sip' (cause 3 - No route to destination)  == Everyone is 
busy/congested at this time (1:0/0/1)    -- Executing [EMAIL PROTECTED]:3] 
VoiceMail('IAX2/iax1Centos-1', '[EMAIL PROTECTED]') in new stack[Feb 26 
18:14:42] WARNING[4581]: app_voicemail.c:2850 leave_voicemail: No entry in 
voicemail config file for '3000'  == Auto fallthrough, channel 
'IAX2/iax1Centos-1' status is 'CHANUNAVAIL'Rx-Frame Retry[ No] -- OSeqno: 002 
ISeqno: 002 Type: IAX     Subclass: ACK       Timestamp: 00117ms  SCall: 00001  
DCall: 00001 [192.168.0.25:4569]Tx-Frame Retry[000] -- OSeqno: 002 ISeqno: 002 
Type: CONTROL Subclass: ANSWER    Timestamp: 00120ms  SCall: 00001  DCall: 
00001 [192.168.0.25:4569]Tx-Frame Retry[000] -- OSeqno: 003 ISeqno: 002 Type: 
CONTROL Subclass: CONGSTN   Timestamp: 00123ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]Rx-Frame Retry[ No] -- OSeqno: 002 ISeqno: 002 Type: VOICE   
Subclass: 4   Timestamp: 00354ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]Tx-Frame Retry[-01] -- OSeqno: 002 ISeqno: 003 Type: IAX     
Subclass: ACK       Timestamp: 00354ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]Rx-Frame Retry[ No] -- OSeqno: 002 ISeqno: 003 Type: IAX     
Subclass: ACK       Timestamp: 00120ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]Rx-Frame Retry[ No] -- OSeqno: 002 ISeqno: 004 Type: IAX     
Subclass: ACK       Timestamp: 00123ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]Rx-Frame Retry[ No] -- OSeqno: 003 ISeqno: 004 Type: IAX     
Subclass: HANGUP    Timestamp: 00457ms  SCall: 00001  DCall: 00001 
[192.168.0.25:4569]   CAUSE CODE      : 16Tx-Frame Retry[-01] -- OSeqno: 004 
ISeqno: 004 Type: IAX     Subclass: ACK       Timestamp: 00457ms  SCall: 00001  
DCall: 00001 [192.168.0.25:4569]    -- Hungup 'IAX2/iax1Centos-1'CentOS*CLI> 
*****************************************************************************************;CentOS
 server iax.conf[general]bindport=4569bindaddr=192.168.0.22 ; this is Centos 
server address 
[iax1Centos]type=friendsecret=volgausername=iax1Centoscontext=centos-contexthost=dynamictrunk=yes--------------------;Centos
 server extension.conf[centos-context]exten 
=>3000,1,Set(TIMEOUT(absolute)=10000) exten =>3000,2,dial(sip/3000/20)exten 
=>3000,3,voicemail([EMAIL PROTECTED])exten=> _2XXX,1,Answer()exten=> 
_2XXX,2,Dial(IAX2/iax1Fedora:[EMAIL PROTECTED]/[EMAIL PROTECTED])exten=> 
_2XXX,3,Hangup()0------------------------------------------; centos sip.conf 
[general]port=5060bindaddr=0.0.0.0[3000]type=friendsecret=3000qualify=yescall-limit=1
   ;limit No of calls this exten can originat in same time;canreinvite=yes  
;can bypass asteris control in future 
calleshost=dynamiccontext=centos-contextmailbox=3000disallow=allallow=ulawallow=alawallow=gsm-------------------------------------------------;fedora
 server iax.conf[general]bindport=4569bindaddr=192.168.0.25 ;this is fedora 
server address 
[iax1Fedora]type=friendsecret=volgausername=iax1Fedoracontext=fedora-contexthost=dynamictrunk=yes-----------------------------------------------;fedora
 server extension.conf[fedora-context]exten =>2000,1,Set(TIMEOUT(absolute)=144) 
exten =>2000,2,dial(sip/2000/20)exten =>2000,3,voicemail([EMAIL PROTECTED]) 
exten=> _3XXX,1,Answer()exten=> _3XXX,2,Dial(IAX2/iax1Centos:[EMAIL 
PROTECTED]/[EMAIL PROTECTED])exten=> 
_3XXX,3,Hangup()-----------------------------------------------;fedora sip.conf 
[general]port=5060bindaddr=0.0.0.0allow=allvideosupport=yes   ;to support video 
calles on all sip video cabable 
terminals[2000]type=friendsecret=2000host=dynamiccontext=fedora-contextmailbox=2000disallow=allallow=ulawallow=alawallow=gsm

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