[asterisk-r2] MFCR2 Cantv (Venezuela) Incomming. Sometimes calls works fine. Sometimes one call takes two channels (busy tone) and sometimes we receive "Protocol error. Reason = Multi Frequency Cycle Timeout"
Luis Morales
fastonion at gmail.com
Tue Aug 24 12:36:47 CDT 2010
Tienes varios problemas a nivel de la configuracion,
Mi primera recomendacion es que uses una version de asterisk 1.4
certificada para trabajar con mfc-r2, la segunda es que a nivel de los
redphone debes hacer una preconfiguracion para indicarle si vas a
trabajar con E1 o T1.
A nivel de señalización debes certificar que el operador te esta
entregando efectivamente mfc-r2.
Para probar tus equipos puedes instalar una version de elastix basada
en asterisk 1.4 que te va simplificar el proceso de instalación y
configuración.
En cuanto a los redphone ya los hemos certificado para mfc-r2 tanto
para CANTV cómo para MOVISTAR, son excelentes equipos.
Saludos cordiales,
Luis Morales
On Tue, Aug 24, 2010 at 12:23 PM, jefedecomunicaciones
<jefedecomunicaciones at epa.com.ve> wrote:
>
> Hello,
>
> As you can read in the subject, we have unusual behavior trying to set up an
> asterisk server using a R2 connection to CANTV in Venezuela.
>
> Following you can find the details:
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> - Asterisk version 1.6.2.6
> - Dadhi version 2.3.0
> - Libpri Version 1.4.10.2
> - openr2 version 1.3.0
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> Configuration files:
> /etc/dahdi/system.conf
>
> fxoks = 1-8
>
> dynamic=ethmf,eth0/00:50:c2:65:d2:0e/0,31,0
> dynamic=ethmf,eth0/00:50:c2:65:d2:0e/1,31,1
>
> cas=9-24:1101
> dchan=25
> cas=26-40:1101
> alaw=9-40
>
> loadzone=us
> defaultzone=us
>
>
> [channels]
>
> group=1
> language=es
> context=Entrantes
> signalling=mfcr2
> mfcr2_variant=ve
> mfcr2_get_ani_first=yes
> mfcr2_immediate_accept=yes
> mfcr2_max_ani=10
> mfcr2_max_dnis=4
> mfcr2_category=national_subscriber
> mfcr2_logdir=cantv
> mfcr2_logging=all
> mfcr2_mfback_timeout=-1
> mfcr2_call_files=yes
> mfcr2_skip_category=yes ; This parameter was added
> after get the Invalid Multi Frequency Tone Error. It did not fix it
> channel => 9-24
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> When we receive several unsuccesfull calls we can see all bits remained in 1
> state in dadhi-tool. After of a while all bits made a clearing process:
>
> Asterisk Console>
> Chan 21 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 21
> MFC/R2 call end on channel 21
> Chan 11 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 11
> MFC/R2 call end on channel 11
> Chan 17 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 17
> MFC/R2 call end on channel 17
> Chan 18 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 18
> MFC/R2 call end on channel 18
> Chan 19 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 19
> MFC/R2 call end on channel 19
> Chan 10 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 10
> MFC/R2 call end on channel 10
> Chan 9 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 9
> MFC/R2 call end on channel 9
>
>
> ...A while after a new unsuccesfull call was made
>
> Asterisk Console>
> New MFC/R2 call detected on chan 12.
> [Jul 21 20:02:40] WARNING[32725]: chan_dahdi.c:1923 dahdi_r2_write_log: Chan
> 12 - MF back cycle timed out!
> [Jul 21 20:02:40] ERROR[32725]: chan_dahdi.c:1926 dahdi_r2_write_log: Chan
> 12 - Protocol error. Reason = Multi Frequency Cycle Timeout, R2 State =
> Seize ACK Transmitted, MF state = Category Request Transmitted, MF Group =
> Backward Group A, CAS = 0x00
> DNIS = 3, ANI = , MF = 0x33
> [Jul 21 20:02:40] ERROR[32725]: chan_dahdi.c:1711
> dahdi_r2_on_protocol_error: MFC/R2 protocol error on chan 12: Multi
> Frequency Cycle Timeout
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
> The following calls works fine. No change were made in any configuration
> file. i.e.:
>
> Asterisk Console>
> New MFC/R2 call detected on chan 9.
> MFC/R2 call offered on chan 9. ANI = 2412008001, DNIS = 355, Category =
> National Subscriber
> [Jul 21 20:10:04] WARNING[3404]: chan_dahdi.c:2683 dahdi_enable_ec: Unable
> to enable echo cancellation on channel 9 (No such device)
> MFC/R2 call has been accepted on backward channel 9
> -- Executing [355 at Entrantes:1] Goto("DAHDI/9-1",
> "internas-standard,355,1") in new stack
> -- Goto (internas-standard,355,1)
> -- Executing [355 at internas-standard:1] Macro("DAHDI/9-1",
> "extension-con-voicemail,SIP/355") in new stack
> -- Executing [s at macro-extension-con-voicemail:1] NoOp("DAHDI/9-1",
> "Llamada standard a 355 en SIP/355") in new stack
> -- Executing [s at macro-extension-con-voicemail:2] Dial("DAHDI/9-1",
> "SIP/355,20") in new stack
> == Using SIP RTP CoS mark 5
> == Using SIP VRTP CoS mark 6
> -- Called 355
> -- SIP/355-00000000 is ringing
> -- SIP/355-00000000 answered DAHDI/9-1
> == Spawn extension (macro-extension-con-voicemail, s, 2) exited non-zero
> on 'DAHDI/9-1' in macro 'extension-con-voicemail'
> == Spawn extension (internas-standard, 355, 1) exited non-zero on
> 'DAHDI/9-1'
> -- Hungup 'DAHDI/9-1'
> New MFC/R2 call detected on chan 10.
> MFC/R2 call offered on chan 10. ANI = 2412008001, DNIS = 355, Category =
> National Subscriber
> [Jul 21 20:11:55] WARNING[3404]: chan_dahdi.c:2683 dahdi_enable_ec: Unable
> to enable echo cancellation on channel 10 (No such device)
> MFC/R2 call has been accepted on backward channel 10
> -- Executing [355 at Entrantes:1] Goto("DAHDI/10-1",
> "internas-standard,355,1") in new stack
> -- Goto (internas-standard,355,1)
> -- Executing [355 at internas-standard:1] Macro("DAHDI/10-1",
> "extension-con-voicemail,SIP/355") in new stack
> -- Executing [s at macro-extension-con-voicemail:1] NoOp("DAHDI/10-1",
> "Llamada standard a 355 en SIP/355") in new stack
> -- Executing [s at macro-extension-con-voicemail:2] Dial("DAHDI/10-1",
> "SIP/355,20") in new stack
> == Using SIP RTP CoS mark 5
> == Using SIP VRTP CoS mark 6
> -- Called 355
> -- SIP/355-00000001 is ringing
> -- SIP/355-00000001 answered DAHDI/10-1
> MFC/R2 call end on channel 9
> == Spawn extension (macro-extension-con-voicemail, s, 2) exited non-zero
> on 'DAHDI/10-1' in macro 'extension-con-voicemail'
> == Spawn extension (internas-standard, 355, 1) exited non-zero on
> 'DAHDI/10-1'
> -- Hungup 'DAHDI/10-1'
> Asterisk Console>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
> Then with only one incomming call two channels change their bits to one, we
> could see it in the dahdi_tool.The call plays a busy tone
>
> Asterisk Console>
> New MFC/R2 call detected on chan 10.
> New MFC/R2 call detected on chan 11.
> Asterisk Console>
>
> dahdi_tool shows two channels seized with the same call
>
> 1234567890123456789012345678901
> TxA 1111111111111111-11111111111111
> TxB 0110000000000000-11111111111111
> TxC 0000000000000000-00000000000000
> TxD 1111111111111111-11111111111111
>
>
> After that,and several calls later, the Multi Frecuency error, then clear
> automatically all channels again
>
> New MFC/R2 call detected on chan 24.
> [Jul 21 20:30:43] ERROR[5134]: chan_dahdi.c:1926 dahdi_r2_write_log: Chan 24
> - Protocol error. Reason = Invalid Multi Frequency Tone, R2 State = Seize
> ACK Transmitted, MF state = Seize ACK Transmitted, MF Group = Backward MF
> init, CAS = 0x00
> DNIS = , ANI = , MF = 0x43
> [Jul 21 20:30:43] ERROR[5134]: chan_dahdi.c:1711 dahdi_r2_on_protocol_error:
> MFC/R2 protocol error on chan 24: Invalid Multi Frequency Tone
> New MFC/R2 call detected on chan 10.
> New MFC/R2 call detected on chan 15.
> Chan 15 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 15
> MFC/R2 call end on channel 15
> New MFC/R2 call detected on chan 15.
> Chan 20 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 20
> MFC/R2 call end on channel 20
> Chan 21 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 21
> MFC/R2 call end on channel 21
> Chan 19 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 19
> MFC/R2 call end on channel 19
> Chan 18 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 18
> MFC/R2 call end on channel 18
> Chan 22 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 22
> MFC/R2 call end on channel 22
> Chan 15 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 15
> MFC/R2 call end on channel 15
> Chan 23 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 23
> MFC/R2 call end on channel 23
> [Jul 21 20:32:55] NOTICE[5134]: chan_dahdi.c:1957 dahdi_r2_on_line_idle: Far
> end unblocked on chan 24
> Chan 10 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 10
> MFC/R2 call end on channel 10
> New MFC/R2 call detected on chan 20.
> New MFC/R2 call detected on chan 21.
> Chan 21 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 21
> MFC/R2 call end on channel 21
> Chan 20 - Far end disconnected. Reason: Normal Clearing
> MFC/R2 call disconnected on channel 20
> MFC/R2 call end on channel 20
>
>
> Do you have any suggestions???
>
>
> Best Regards
> Ramón Jiménez
>
> --
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--
---------------------------------------------------------------------------------
Luis Morales
Consultor de Tecnologia
Cel: +58(0412)2352745
OpenID: http://lmorales.myopenid.com/
Twitter: @magnadata
Linux User ID : 470650
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"Empieza por hacer lo necesario, luego lo que es posible... y de
pronto estarás haciendo lo imposible"
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