Doesn´t worked.

; --- configuracao tipica de um E1 configurado no PBX E1 ----
;context=from-pstn
context=from-pabx
signalling=r2mfc_ndis_variable
min_digits_rx=3
max_digits_rx=20
b_subscriber_hangup=1
interdigit_timeout=2000
;interdigit_timeout=2000
port_id=00009999
cid_pos=0
category=1
group_b_value=1
tx_gain = -3
rx_gain = 0
echocan=1
;;;accountcode=e1
accountcode=e1pbx
silence_threshold=-24
gen_dtmf=2
dtmf_to_asterisk=1
gen_ringback=1
gen_busy=1
callprogress=cp_default.cfg
language=pt_BR
wait_dialtone=1
dialtone_timeout=3000
relaxdtmf=1
ports => 31-60


Worked.

; --- configuracao tipica de um E1 configurado no PBX E1 ----
context=from-pstn
signalling=r2mfc_ndis_variable
min_digits_rx=1
max_digits_rx=20
b_subscriber_hangup=1
interdigit_timeout=2000
port_id=
cid_pos=0
category=1
group_b_value=1
tx_gain = -6
rx_gain = 0
echocan=0
accountcode=e1pbx
silence_threshold=-24
gen_dtmf=0
dtmf_to_asterisk=1
gen_ringback=1
gen_busy=1
callprogress=cp_default.cfg
language=pt_BR
wait_dialtone=1
dialtone_timeout=3000
relaxdtmf=1
ports => 31-60