[asterisk-r2] Erros MFC/R2

[Heros Amaral]

Bom dia,

A minha conexão com a operadora de telefonia são 8 (oito) links R2
Digital, para
o asterisk eu uso uma máquina virtual no VMWare com sistema operacional GNU
/ Linux CentOS 7.0, Asterisk 13, Dahdi 2.10.2 e 1.3.3 OpenR2, uso dois
gateways da RedFone (Fonebridge2), a minha conecção com o gateway é feita
através de uma VLAN para cada interface do gateway, mas sempre quando eu
tento fazer uma ligação o seguinte erro é apresentado:

[Nov 20 17:37:30] WARNING[2287]: chan_dahdi.c:3882 dahdi_r2_write_log: Chan
1 - Seize Timeout Expired!

[Nov 20 17:37:30] ERROR[2287]: chan_dahdi.c:3885 dahdi_r2_write_log: Chan 1
- Protocol error. Reason = Seize Timeout, R2 State = Clear Forward
Transmitted, MF state = MF Engine Off, MF Group = Forward MF init, CAS =
0x08

DNIS = 92437457, ANI = 9994, MF = 0x20

[Nov 20 17:37:30] ERROR[2287]: chan_dahdi.c:3646
dahdi_r2_on_protocol_error: MFC/R2 protocol error on chan 1: Seize Timeout

Abaixo seguem meus arquivos de configuração:

/etc/dahdi/system.conf

dynamic=ethmf,eno50338560/00:50:c2:65:e3:44/0,31,0
dynamic=ethmf,eno50338560/00:50:c2:65:e3:44/1,31,1
#
dynamic=ethmf,eno83889152/00:50:c2:65:e3:42/0,31,0
dynamic=ethmf,eno83889152/00:50:c2:65:e3:42/1,31,1
#
dynamic=ethmf,eno100668416/00:50:c2:65:e3:2c/0,31,0
dynamic=ethmf,eno100668416/00:50:c2:65:e3:2c/1,31,1
#
dynamic=ethmf,eno117447680/00:50:c2:65:e3:2e/0,31,0
dynamic=ethmf,eno117447680/00:50:c2:65:e3:2e/1,31,1
#
cas=1-15:1101
dchan=16
cas=17-31:1101
alaw=1-30
#
cas=32-46:1101
dchan=47
cas=48-62:1101
alaw=32-62
#
cas=63-77:1101
dchan=78
cas=79-93:1101
alaw=63-93
#
cas=94-108:1101
dchan=109
cas=110-124:1101
alaw=94-124
#
cas=125-139:1101
dchan=140
cas=141-155:1101
alaw=125-155
#
cas=156-170:1101
dchan=171
cas=172-186:1101
alaw=156-186
#
cas=187-201:1101
dchan=202
cas=203-217:1101
alaw=187-217
#
cas=218-232:1101
dchan=233
cas=234-248:1101
alaw=218-248

loadzone=br
defaultzone=br

/etc/redfone_01.conf

[globals]
fb=192.168.1.254
port=1
server=00:50:56:8a:1e:83
priorities=0,1,2,3
#
[span1]
framing=cas
encoding=hdb3
rbs
master
#
[span2]
framing=cas
encoding=hdb3
rbs
master
#
[span3]
framing=cas
encoding=hdb3
rbs
master
#
[span4]
framing=cas
encoding=hdb3
master

/etc/asterisk/chan_dahdi.conf

[trunkgroups]

[channels]
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=no
echocancelwhenbridged=no
relaxdtmf=yes
rxgain=0.0
txgain=0.0
group=0
callgroup=1
pickupgroup=1
;group=0
callgroup=1
pickupgroup=1
context=from-pstn
signalling=mfcr2
mfcr2_variant=br
mfcr2_mfback_timeout=4000
mfcr2_get_ani_first=no
mfcr2_max_ani=20
mfcr2_max_dnis=4
mfcr2_category=national_subscriber
; The next three params are for debuging, you can disable when in production
mfcr2_call_files=yes
mfcr2_logdir=GVT
mfcr2_logging=all

group=0
context=default
signalling=mfcr2
channel => 1-15,17-31
channel => 32-46,48-62

group=1
context=default
signalling=mfcr2
channel => 63-77,79-93
channel => 94-108,110-124

group=2
context=default
signalling=mfcr2
channel => 125-139,141-155
channel => 156-170,172-186

group=3
context=default
signalling=mfcr2
channel => 187-201,203-217
channel => 218-232,234-248

Já realizei diversos testes e nenhum fez efeito, gostaria de saber se
alguém poderia me dá um apoio?

*Heros Santos Amaral Filho*

*+55 61 9243-7457*
heros.amaral at gmail.com
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