[asterisk-r2] error with R2

[Latre]

I have an error configuring R2 in Mexico (Telum)

My chan_dadhi.conf

[trunkgroups]

[channels]
language=en
context=default
usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
canpark=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=yes
relaxdtmf=yes
rxgain=0.0
txgain=0.0
;group=1
callgroup=1
pickupgroup=1
immediate=no
cidstart=polarity
cidstart=ring
callerid=asreceived
;cidsignalling=bell


; ########## TELUM   ################
signalling=mfcr2
mfcr2_variant=mx
mfcr2_get_ani_frist=no
mfcr2_max_ani=10
mfcr2_max_dnis=4
mfcr2_category=national_subscriber
mfcr2_mfback_timeout=-1
mfcr2_metering_pulse_timeout=-1
; this is for debugging purposes
mfcr2_logdir=log
mfcr2_logging=all
; end debugging configuration
context=from-pstn
group=2
restrictcid=yes
hidecallerid=yes
channel => 32-46
channel => 48-62


I get this in log

[2013-10-29 08:34:55] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - ANI so far: 818125XXXX, expected length: 10
[2013-10-29 08:34:55] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - Done getting ANI!
[2013-10-29 08:34:55] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - Requesting change to Group II with signal 0x33
[2013-10-29 08:34:55] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - MF Tx >> 3 [ON]
[2013-10-29 08:35:00] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - calling timer 16 (mf_back_cycle) callback
[2013-10-29 08:35:00] WARNING[20926]: chan_dahdi.c:4109 dahdi_r2_write_log:
Chan 39 - MF back cycle timed out!
[2013-10-29 08:35:00] ERROR[20926]: chan_dahdi.c:4112 dahdi_r2_write_log:
Chan 39 - Protocol error. Reason = Multi Frequency Cycle Timeout, R2 State
= Seize ACK Transmitted, MF state = Change To Group II Request Transmitted,
MF Group = Backward Group B, CAS = 0x00
DNIS = 4000, ANI = 818125XXXX, MF = 0x30
[2013-10-29 08:35:00] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - CAS Tx >> [IDLE] 0x08
[2013-10-29 08:35:00] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - CAS Raw Tx >> 0x09
[2013-10-29 08:35:00] ERROR[20926]: chan_dahdi.c:3897
dahdi_r2_on_protocol_error: MFC/R2 protocol error on chan 39: Multi
Frequency Cycle Timeout
[2013-10-29 08:35:00] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - Bits changed from 0x00 to 0x08
[2013-10-29 08:35:00] DEBUG[20926]: chan_dahdi.c:4119 dahdi_r2_write_log:
Chan 39 - CAS Rx << [IDLE] 0x08
[2013-10-29 08:35:00] NOTICE[20926]: chan_dahdi.c:4143
dahdi_r2_on_line_idle: Far end unblocked on chan 39

My provider said that sendme 4 digits......my number finish in 4000

O can out calls but not recive.
Could you please help me with this.
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