[asterisk-users] Unable to create channel of type 'DAHDI' (cause 17 - User busy)

Fri Nov 2 04:58:48 CDT 2012

Hi,

I have 6 Red FXO with TDM2400p in my PC. I have install asterisk and dahdi
driver.
Scenario is 

jitsi-----> asterisk server-----> analog PBX ----> landline phone

I configured this scenario as follow

in chan_dahdi.conf file

    ; General options
    [channels]
    usecallerid=yes
    hidecallerid=no
    callwaiting=yes
    threewaycalling=yes 
    transfer=yes
    echocancel=yes
    echocancelwhenbridged=yes
    rxgain=0.0 
    txgain=0.0
    ;FXO Modules
    group=2
    echocancel=yes
    signalling=fxs_ks
    context=Incoming
    channel=1-20

After loading module in astrisk giving o/p below

    module load chan_dahdi.so
    Loaded chan_dahdi.so
    == Parsing '/etc/asterisk/chan_dahdi.conf':   == Found
    == Parsing '/etc/asterisk/users.conf':   == Found
    -- Registered channel 1, FXS Kewlstart signalling
    -- Registered channel 2, FXS Kewlstart signalling
    -- Registered channel 3, FXS Kewlstart signalling
    -- Registered channel 4, FXS Kewlstart signalling
    -- Registered channel 5, FXS Kewlstart signalling
    -- Registered channel 6, FXS Kewlstart signalling
    -- Registered channel 7, FXS Kewlstart signalling
    -- Registered channel 8, FXS Kewlstart signalling
    -- Registered channel 9, FXS Kewlstart signalling
    -- Registered channel 10, FXS Kewlstart signalling
    -- Registered channel 11, FXS Kewlstart signalling
    -- Registered channel 12, FXS Kewlstart signalling
    -- Registered channel 13, FXS Kewlstart signalling
    -- Registered channel 14, FXS Kewlstart signalling
    -- Registered channel 15, FXS Kewlstart signalling
    -- Registered channel 16, FXS Kewlstart signalling
    -- Registered channel 17, FXS Kewlstart signalling
    -- Registered channel 18, FXS Kewlstart signalling
    -- Registered channel 19, FXS Kewlstart signalling
    -- Registered channel 20, FXS Kewlstart signalling
    -- Automatically generated pseudo channel
    [Nov  2 14:38:50] WARNING[1886]: chan_dahdi.c:17278 process_dahdi:
Ignoring any changes to 'userbase' (on reload) at line 23.
    [Nov  2 14:38:50] WARNING[1886]: chan_dahdi.c:17278 process_dahdi:
Ignoring any changes to 'vmsecret' (on reload) at line 31.
    [Nov  2 14:38:50] WARNING[1886]: chan_dahdi.c:17278 process_dahdi:
Ignoring any changes to 'hassip' (on reload) at line 35.
    [Nov  2 14:38:50] WARNING[1886]: chan_dahdi.c:17278 process_dahdi:
Ignoring any changes to 'hasiax' (on reload) at line 39.
    [Nov  2 14:38:50] WARNING[1886]: chan_dahdi.c:17278 process_dahdi:
Ignoring any changes to 'hasmanager' (on reload) at line 47.
    == Registered channel type 'DAHDI' (DAHDI Telephony Driver)
    == Manager registered action DAHDITransfer
    == Manager registered action DAHDIHangup
    == Manager registered action DAHDIDialOffhook
    == Manager registered action DAHDIDNDon
    == Manager registered action DAHDIDNDoff
    == Manager registered action DAHDIShowChannels
    == Manager registered action DAHDIRestart
    Loaded chan_dahdi.so => (DAHDI Telephony Driver)

In my extension.conf file i wrote dialplan for user so sandeep is jitsi
user and 81 and 88 is landline number.

    [general]
    static=yes
    writeprotect=no
    clearglobalvars=no

    [Incoming]
    exten => s,1,Answer
    exten => s,2,Dial(DAHDI/g1,20,rt)
    exten => s,3,Voicemail(1000,u)
    exten => s,103,Voicemail(1000,b)
    exten => sandeep,1,Dial(SIP/sandeep)
    exten => sandeep,n,Hangup()

    exten => 1004,4,Dial(SIP/sandeep)
    exten => 1004,n,Hangup()
    ; Testing extension, prepare to be insulted like a
    ; Monthy Python knight

    exten => 81,1,Dial(DAHDI/1,20,rt)
    exten => 81,n,Hangup()

    exten => 88,1,Dial(DAHDI/1,20,rt)
    exten => 88,n,Hangup()

    exten => 8500,1,VoiceMailMain
    exten => 8501,1,MusicOnHold
    exten => _9.,1,Dial(DAHDI/g2/www${EXTEN:1})
    exten => _9.,2,Congestion

    exten => 201,1,Answer()
    exten => 201,n,Playback(tt-monty-knights)
    exten => 201,n,Hangup()

    ; Echo-test, it is good to test if we have sound in both directions.
    ; The call is answered
    exten => 202,1,Answer()
    ; Welcome message is played
    exten => 202,n,Playback(welcome)
    ; Play information about the echo test
    exten => 202,n,Playback(demo-echotest)
    ; Do the echo test, end with the # key
    exten => 202,n,Echo()
    ; Plays information that the echo test is done
    exten => 202,n,Playback(demo-echodone)
    ; Goodbye message is played
    exten => 202,n,Playback(vm-goodbye)
    ; Hangup() ends the call, hangs up the line
    exten => 202,n,Hangup()

After loading extension and dahdi, i called from jitsi and dialed 81 but
asterisk is giving o/p as below and  busy tone is coming on jitsi

    -- Executing [81 at myphones:1] Dial("SIP/sandeep-00000000",
"DAHDI/1,20,rt") in new stack
    -- Called 1
    [Nov  2 14:45:31] WARNING[2145]: chan_dahdi.c:7536 handle_alarms:
Detected alarm on channel 1: Red Alarm
    -- Hanging up on 'DAHDI/1-1'
    -- Hungup 'DAHDI/1-1'
    == Everyone is busy/congested at this time (1:0/0/1)
    -- Executing [81 at myphones:2] Hangup("SIP/sandeep-00000000", "") in new
stack
    == Spawn extension (myphones, 81, 2) exited non-zero on
'SIP/sandeep-00000000'

Any help to resolve this problem.

THanks 

-- 
With Warm Regards

Harish Mandowara

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