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

[Shazaum]

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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