[asterisk-r2] Outgoing call to a PBX interface is being dropped

[Isamar Maia]

Hey Shazam!,

That's the tip that Marcos, from Aligera, gave me right after I sent
this message.

I believe there is a big chance to be indeed the "drop-collect-call"
feature the cause
of this prob.

Since changing this stuff at the PBX side will not be an easy thing,
he suggested me
to set "mfcr2_metering_pulse_timeout=1500" and check it out.

I will be doing that hopefully in couple hours and after that, I get back here.

Thanks for replying.

Isamar

P.S.: I was a big fan of Shazam in the old times:
http://en.wikipedia.org/wiki/Shazam!_(TV_series)
Next time, when I have a problem here, I will shout "Shazam!" :-)

2010/2/19 Shazaum <shazaum at gmail.com>:
> Hey Isamer...
>
> the pbx has double-answer(duplo-atendimento/drop-collect-call)?
>
> had a similar case with "double-answer/drop-collect-call"
>
> Renato dos Santos
> renato at opens.com.br
> OpenS Tecnologia Ltda
> Rua Padre Marcelino Champagnat, 236
> Jardim Atlântico - Florianópolis - SC - Brasil
> +55 (48) 3954-8000
> http://www.opens.com.br
> shazaum.wordpress.com
>
>
>
> 2010/2/19 Isamar Maia <isamar at gmail.com>
>>
>> Hello Folks,
>>
>> I have a 2E1 ports board produced by company in Brazil named Aligera
>>
>> I have one E1 port connected to PSTN(Embratel) and the other connected to
>> a
>> digital converter named "Intelbras IC-E1".
>>
>> http://www.intelbras.com.br/ecenter/downloads/manuais/interface_ic_e1.zip
>>
>> It converts 15 or 30 analog lines in one R2 trunk. It converts the
>> analog trunks from the PBX to R2, connected to Asterisk.
>>
>> So:
>> PBX <-->  IC-E1 <--> Asterisk  <--> PSTN(Embratel)
>>
>> I can send and receive calls through  the PSTN line and I *can*
>> receive calls from the
>> PBX/IC-E1 side. The problem is when I receive a call from the PSTN
>> line to the PBX,
>> the outbound call to the PBX is answered by the operator, I can hear
>> some seconds of
>> audio and then it drops.
>>
>> My environment is:
>>
>> Kernel version:  Kernel 2.6.18-164.el5PAE
>> Distro: CentOS release 5.4 (Final)
>> Versao do Asterisk: 1.6.2.1
>> Dahdi Package used: dahdi-linux-2.1.0.3-ap400.tar.gz
>> R2 lib package: openr2-1.2.0.tar.gz
>>
>> My setup is:
>>
>> DAHDI's  system.conf:
>>
>> # pabx
>> span=1,0,0,cas,hdb3
>> cas=1-15:1101
>> cas=17-31:1101
>>
>>
>> # embratel
>> dchan=16
>> echocanceller=mg2,1-15,17-31
>>
>> span=2,1,0,cas,hdb3
>> cas=32-46:1101
>> cas=48-52:1101
>> dchan=47
>> echocanceller=mg2,32-46,48-52
>>
>> # Global data
>>
>> loadzone    = br
>> defaultzone    = br
>>
>>
>>
>> chan_dahdi.conf
>>
>> ; PBX
>> [channels]
>> context=from-pbx
>> signalling=mfcr2
>> mfcr2_variant=br
>> mfcr2_get_ani_first=yes
>> ; Max amount of ANI to ask for
>> mfcr2_max_ani=20
>> ; Max amount of DNIS to ask for
>> mfcr2_max_dnis=20
>> mfcr2_category=national_subscriber
>> mfcr2_logdir=span1
>> mfcr2_logging=all
>> mfcr2_allow_collect_calls=no
>> mfcr2_forced_release=no
>> callerid=asreceived
>> group=1
>> callgroup=1
>> pickupgroup=1
>> channel => 1-15,17-31
>>
>> ; --------------------------------- PSTN
>>
>> context=from-pstn
>> signalling=mfcr2
>> mfcr2_variant=br
>> mfcr2_get_ani_first=yes
>> ; Max amount of ANI to ask for
>> mfcr2_max_ani=20
>> ; Max amount of DNIS to ask for
>> mfcr2_max_dnis=20
>> mfcr2_category=national_subscriber
>> mfcr2_logdir=span1
>> mfcr2_logging=all
>> mfcr2_allow_collect_calls=no
>> mfcr2_forced_release=no
>> callerid=asreceived
>> group=2
>> callgroup=2
>> pickupgroup=2
>> channel => 32-46,48-52
>>
>>
>> The only weird messages I can find in the logs are:
>>
>> [Feb 12 11:09:35] ERROR[31600] chan_dahdi.c: MFC/R2 protocol error on
>> chan 22: Invalid CAS
>> [Feb 12 11:09:35] ERROR[31600] chan_dahdi.c: Chan 23 - Protocol error.
>> Reason = Invalid CAS, R2 State = Seize ACK Transmitted, MF state =
>> Seize ACK Transmitted, MF Group = Backward MF init, CAS = 0x0C DNIS =
>> , ANI = , MF = 0x20
>>
>> What it should be ?
>>
>> --
>>
>> Isamar Maia
>> Brazil: 55-71-9146-8575
>>            55-71-4062-8688
>> 日本: +81-(0)3-4550-1212
>> "In a world without walls. Who needs windows and gates?"
>>
>> --
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>
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-- 
Isamar Maia
Brazil: 55-71-9146-8575
            55-71-4062-8688
日本: +81-(0)3-4550-1212
"In a world without walls. Who needs windows and gates?"