[Asterisk-java-users] Inbound calls get cancelled - 'Subscriber Absent' warning

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Hi,

I am having difficulty in configuring an inbound route for asterisk-java:
callcentric sip did -> freepbx distro/asterisk -> asterisk-java (this fails)
callcentric sip did -> freepbx distro/asterisk -> X-Lite (works smoothly)

My configuration is FreePBX Distro 2.210 w/ Asterisk 1.8.20 on CentOS. I
successfully configured my callcentric sip trunk, an extension, and an
inbound route. I can receive calls on X-lite. Now, I am trying to work my
way through the Asterisk-java FastAGI tutorial to be able to handle inbound
calls in my subclass of BaseAgiScript. But before my java code gets
invoked, asterisk aborts the call. Following is the relevant information
(please ask for anything else if required):
--------------------------------------------------------------------------------------------------------------------------------------------
Asterisk-java Log: (no activity here)

prompt$ java -jar asterisk-java.jar
Mar 24, 2013 9:05:58 PM org.asteriskjava.fastagi.DefaultAgiServer startup
INFO: Listening on *:4573.
..
--------------------------------------------------------------------------------------------------------------------------------------------
Asterisk Log:

    -- Executing [s@macro-dial-one:33] ExecIf("SIP/callcentric-00000007",
"0?Set(CHANNEL(musicclass)=)") in new stack
    -- Executing [s@macro-dial-one:34] GosubIf("SIP/callcentric-00000007",
"0?qwait,1()") in new stack
    -- Executing [s@macro-dial-one:35] Set("SIP/callcentric-00000007",
"__CWIGNORE=") in new stack
    -- Executing [s@macro-dial-one:36] Set("SIP/callcentric-00000007",
"__KEEPCID=TRUE") in new stack
    -- Executing [s@macro-dial-one:37] GotoIf("SIP/callcentric-00000007",
"0?usegoto,1") in new stack
    -- Executing [s@macro-dial-one:38] GotoIf("SIP/callcentric-00000007",
"1?godial") in new stack
    -- Goto (macro-dial-one,s,42)
    -- Executing [s@macro-dial-one:42] Dial("SIP/callcentric-00000007",
"SIP/1001,,tr") in new stack
[2013-03-24 21:06:19] WARNING[3195]: app_dial.c:2345 dial_exec_full: Unable
to create channel of type 'SIP' (cause 20 - Subscriber absent)
  == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing [s@macro-dial-one:43] ExecIf("SIP/callcentric-00000007",
"0?Set(DIALSTATUS=)") in new stack
    -- Executing [s@macro-dial-one:44] GosubIf("SIP/callcentric-00000007",
"0?s-CHANUNAVAIL,1()") in new stack
    -- Executing [s@macro-dial-one:45]
MacroExit("SIP/callcentric-00000007", "") in new stack
    -- Executing [s@macro-exten-vm:15] Set("SIP/callcentric-00000007",
"SV_DIALSTATUS=CHANUNAVAIL") in new stack
    -- Executing [s@macro-exten-vm:16] GosubIf("SIP/callcentric-00000007",
"0?docfu,1()") in new stack
    -- Executing [s@macro-exten-vm:17] GosubIf("SIP/callcentric-00000007",
"0?docfb,1()") in new stack
    -- Executing [s@macro-exten-vm:18] Set("SIP/callcentric-00000007",
"DIALSTATUS=CHANUNAVAIL") in new stack
    -- Executing [s@macro-exten-vm:19] ExecIf("SIP/callcentric-00000007",
"0?MacroExit()") in new stack
    -- Executing [s@macro-exten-vm:20] GotoIf("SIP/callcentric-00000007",
"1?s-CHANUNAVAIL,1") in new stack
    -- Goto (macro-exten-vm,s-CHANUNAVAIL,1)
    -- Executing [s-CHANUNAVAIL@macro-exten-vm:1]
GotoIf("SIP/callcentric-00000007", "0?exit,1") in new stack
    -- Executing [s-CHANUNAVAIL@macro-exten-vm:2]
PlayTones("SIP/callcentric-00000007", "congestion") in new stack
    -- Executing [s-CHANUNAVAIL@macro-exten-vm:3]
Congestion("SIP/callcentric-00000007", "10") in new stack
  == Spawn extension (macro-exten-vm, s-CHANUNAVAIL, 3) exited non-zero on
'SIP/callcentric-00000007' in macro 'exten-vm'
  == Spawn extension (from-did-direct, 1001, 2) exited non-zero on
'SIP/callcentric-00000007'
    -- Executing [h@from-did-direct:1] Macro("SIP/callcentric-00000007",
"hangupcall,") in new stack
    -- Executing [s@macro-hangupcall:1] GotoIf("SIP/callcentric-00000007",
"1?theend") in new stack
    -- Goto (macro-hangupcall,s,3)
    -- Executing [s@macro-hangupcall:3] ExecIf("SIP/callcentric-00000007",
"0?Set(CDR(recordingfile)=)") in new stack
    -- Executing [s@macro-hangupcall:4] Hangup("SIP/callcentric-00000007",
"") in new stack
  == Spawn extension (macro-hangupcall, s, 4) exited non-zero on
'SIP/callcentric-00000007' in macro 'hangupcall'
  == Spawn extension (from-did-direct, h, 1) exited non-zero on
'SIP/callcentric-00000007'[/code][/size]
--------------------------------------------------------------------------------------------------------------------------------------------
extensions_custom.conf (contexts tried: default, from-pstn, from-trunk ..
none worked)

[from-pstn-custom]
exten => 1001,1,AGI(agi://192.168.1.106:4573/hello.agi)[/code]
--------------------------------------------------------------------------------------------------------------------------------------------
SIP trunk peer details (From Callcentric's configuration instructions for
FreePBX)

context=from-pstn
fromdomain=callcentric.com
fromuser=177723XXXXX
host=callcentric.com
insecure=port,invite
secret=password
type=peer
defaultuser=177723XXXXX
disallowed_methods=UPDATE
directmedia=no
videosupport=no
disallow=all
allow=ulaw
--------------------------------------------------------------------------------------------------------------------------------------------
sip_general_custom.conf (From Callcentric's configuration instructions for
FreePBX)

context=from-pstn
srvlookup=yes
session-timers=refuse
session-expires=180
session-minse=90
session-refresher=uas
--------------------------------------------------------------------------------------------------------------------------------------------
SIP detailed logs:

localhost*CLI> sip set debug on
SIP Debugging enabled
Really destroying SIP dialog '05b1a0c008559d24301bde7a0879ed4f@[::1]'
Method: REGISTER

<--- SIP read from UDP:204.11.192.161:5060 --->
INVITE sip:17772380367@71.62.43.250:5060 SIP/2.0
v: SIP/2.0/UDP 204.11.192.161:5060
;branch=z9hG4bK-065a4117c11d04df12a8cf3dafa2af77
f: <sip:16617480240@66.193.176.35>;tag=3573164592-373269
t: <sip:163...@ss...>
i: 238...@ms...
CSeq: 1 INVITE
Max-Forwards: 8
m: <sip:6e1ae09b353f7d72cc21a7cf0cd89f6e@204.11.192.161:5060;transport=udp>
Supported: timer
c: application/sdp
l: 350

v=0
o=NexTone-MSW 2147483647 2147483647 IN IP4 204.11.192.161
s=sip call
c=IN IP4 204.11.192.161
t=0 0
m=audio 54366 RTP/AVP 18 0 8 101
a=fmtp:18 annexb=no
a=fmtp:101 0-15
a=rtpmap:101 telephone-event/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=ptime:20
a=sendrecv
a=silenceSupp:off - - - -
a=setup:actpass
<------------->
--- (11 headers 16 lines) ---
Sending to 204.11.192.161:5060 (NAT)
Using INVITE request as basis request -
238...@ms...
No matching peer for '16617480240' from '204.11.192.161:5060'
  == Using SIP RTP TOS bits 184
  == Using SIP RTP CoS mark 5
Found RTP audio format 18
Found RTP audio format 0
Found RTP audio format 8
Found RTP audio format 101
Found audio description format telephone-event for ID 101
Found audio description format PCMA for ID 8
Found audio description format PCMU for ID 0
Found audio description format G729 for ID 18
Capabilities: us - 0xe (gsm|ulaw|alaw), peer - audio=0x10c
(ulaw|alaw|g729)/video=0x0 (nothing)/text=0x0 (nothing), combined - 0xc
(ulaw|alaw)
Non-codec capabilities (dtmf): us - 0x1 (telephone-event|), peer - 0x1
(telephone-event|), combined - 0x1 (telephone-event|)
Peer audio RTP is at port 204.11.192.161:54366
Looking for 17772380367 in from-pstn (domain 71.62.43.250)
list_route: hop: <sip:6e1ae09b353f7d72cc21a7cf0cd89f6e@204.11.192.161:5060
;transport=udp>

<--- Transmitting (NAT) to 204.11.192.161:5060 --->
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 204.11.192.161:5060
;branch=z9hG4bK-065a4117c11d04df12a8cf3dafa2af77;received=204.11.192.161;rport=5060
From: <sip:16617480240@66.193.176.35>;tag=3573164592-373269
To: <sip:163...@ss...>
Call-ID: 238...@ms...
CSeq: 1 INVITE
Server: FPBX-2.10.1(1.8.20.1)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH
Supported: replaces
Contact: <sip:17772380367@71.62.43.250:5060>
Content-Length: 0

<--- Reliably Transmitting (NAT) to 204.11.192.161:5060 --->
SIP/2.0 503 Service Unavailable
Via: SIP/2.0/UDP 204.11.192.161:5060
;branch=z9hG4bK-065a4117c11d04df12a8cf3dafa2af77;received=204.11.192.161;rport=5060
From: <sip:16617480240@66.193.176.35>;tag=3573164592-373269
To: <sip:163...@ss...>;tag=as5f64e106
Call-ID: 238...@ms...
CSeq: 1 INVITE
Server: FPBX-2.10.1(1.8.20.1)
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO,
PUBLISH
Supported: replaces
X-Asterisk-HangupCause: Subscriber absent
X-Asterisk-HangupCauseCode: 20
Content-Length: 0
<------------>
--------------------------------------------------------------------------------------------------------------------------------------------
Any help will be highly appreciated, thanks!