[asterisk-users] ISDN Timer T309

Fri Apr 3 20:26:11 CDT 2009

What is the specification for T309 ? I'm too lazy to look it up.

The default behaviour when the alarm of layer 1 (electrical T1/E1) is
detected is to assume
all calls dropped on both sides and that's what Asterisk does.

The timer is simply deactivated since all the calls are supposed to
drop. I believe that agrees with Q921/Q931 specs.

Martin

On Fri, Apr 3, 2009 at 12:14 PM, Afonso Zimmermann <afonso at disc-os.org> wrote:
> Hi everione,
>
> I'm make some test with pri timer T309. I'm using asterisk 1.4.23.1, libpri
> 1.4.9, dahdi-linux 2.1.0.4 and dahdi-tools 2.1.0.2. But in my tests, the
> timer fail with a telco link in this scenario:
>
> Telco Phone <----------> Telco <-----------> Asterisk <------------> Sip
> Phone
>
> When i make a call from Telco Phone to Sip Phone, the call complete, but
> when i disconnect the link and reconnect in few seconds, the Asterisk clear
> call:
>
> [Apr  3 10:44:40] WARNING[13081]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 1: Red Alarm
> [Apr  3 10:44:40] NOTICE[21088]: chan_dahdi.c:9558 pri_dchannel: PRI got
> event: Alarm (4) on Primary D-channel of span 1
>   == Spawn extension (disc-from-trunk-TR001, 9800, 2) exited non-zero on
> 'DAHDI/1-1'
> [Apr  3 10:44:40] WARNING[21088]: chan_dahdi.c:3021 pri_find_dchan: No
> D-channels available!  Using Primary channel 16 as D-channel anyway!
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 2: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 2: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 3: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 3: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 4: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 4: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 5: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 5: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 6: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 6: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 7: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 7: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 8: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 8: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 9: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 9: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 10: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 10: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 11: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 11: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 12: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 12: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 13: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 13: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 14: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 14: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 15: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 15: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 17: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 17: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 18: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 18: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 19: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 19: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 20: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 20: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 21: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 21: Invalid argument
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Active, peerstate Active
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 22: Red Alarm
> q931.c:3009 q931_disconnect: call 1 on channel 1 enters state 11 (Disconnect
> Request)
>> Protocol Discriminator: Q.931 (8)  len=9
>> Call Ref: len= 2 (reference 1/0x1) (Terminator)
>> Message type: DISCONNECT (69)
>> [08 02 81 90]
>> Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0)  Spare: 0
>> Location: Private network serving the local user (1)
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec:
>>                  Ext: 1  Cause: Normal Clearing (16), class = Normal Event
> (1) ]
> Unable to disable echo cancellation on channel 22: Invalid argument
>     -- Hungup 'DAHDI/1-1'
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 23: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 23: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 24: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 24: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 25: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 25: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 26: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 26: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 27: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 27: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 28: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 28: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 29: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 29: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 30: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 30: Invalid argument
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:4385 handle_alarms: Detected
> alarm on channel 31: Red Alarm
> [Apr  3 10:44:40] WARNING[21089]: chan_dahdi.c:2012 dahdi_disable_ec: Unable
> to disable echo cancellation on channel 31: Invalid argument
> -- Timeout occured, restarting PRI
> q921.c:438 t200_expire: q921_state now is Q921_LINK_CONNECTION_RELEASED
> q931.c:4019 q931_dl_indication: link is DOWN
> q931.c:4030 q931_dl_indication: cancel call 1 on channel 1 in state 11
> (Disconnect Request)
> Sending Set Asynchronous Balanced Mode Extended
> q921.c:211 q921_send_sabme: q921_state now is Q921_AWAITING_ESTABLISH
> [Apr  3 10:44:44] WARNING[21088]: chan_dahdi.c:3021 pri_find_dchan: No
> D-channels available!  Using Primary channel 16 as D-channel anyway!
> q931.c:3996 pri_dl_down_cancelcall: Cancel non active call after data link
> failure
> q931.c:3951 pri_internal_clear: call 1 on channel 1 enters state 0 (Null)
> NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Null
> NEW_HANGUP DEBUG: Destroying the call, ourstate Null, peerstate Null
>   == Primary D-Channel on span 1 up
> Sending Set Asynchronous Balanced Mode Extended
> Sending Set Asynchronous Balanced Mode Extended
> Sending Set Asynchronous Balanced Mode Extended
> Sending Set Asynchronous Balanced Mode Extended
> Sending Set Asynchronous Balanced Mode Extended
>
> Apparently, the call is cleared before the libpri execute a t309 code.
>
> My system.conf:
>
> loadzone=br
> defaultzone=br
> span=1,0,0,ccs,hdb3,crc4
> bchan=1-15,17-31
> dchan=16
>
> My chan_dahdi.conf
>
> [trunkgroups]
>
> [channels]
> language=pt_BR
> usecallerid=yes
> hidecallerid=no
> callwaiting=> yes
> usecallingpres=> yes
> callwaitingcallerid=yes
> threewaycalling=yes
> transfer=yes
> cancallforward=yes
> callreturn=yes
> immediate=no
> callerid=asreceived
> faxdetect=both
> loglevel=255
> mfcr2_logging=all
> mfcr2_call_files=yes
> mfcr2_accept_on_offer=no
>
> signalling=pri_cpe
> switchtype=euroisdn
> context=disc-from-trunk-TR001
> pridialplan=unknown
> prilocaldialplan=unknown
> resetinterval=never
> priindication=inband
> facilityenable=no
> overlapdial=no
> txgain=0.0
> rxgain=0.0
> internationalprefix=
> nationalprefix=
> localprefix=
> privateprefix=
> unknownprefix=
> priexclusieve=no
> pritimer=>n200,3
> pritimer=>k,7
> pritimer=>t200,1000
> pritimer=>t203,10000
> pritimer=>t305,30000
> pritimer=>t308,4000
> pritimer=>t309,12000
> pritimer=>t313,4000
> group=1
> callgroup=1
> pickupgroup=1
> channel => 1-15,17-31
>
> Forgive me for my poor English. Any suggestions?
>
> --
> Afonso Zimmermann
>
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