Someone

[general]
allow_slinear=0
allow_ulaw=1
allow_alaw=1
allow_gsm=1

force_single_span=0

[allportsconfig]

default_callprogress=cp_default.cfg
detectiontype = 1
dialtype = 1

ringbacktone1 = tone1
ringbacktone2 = tone1
ringbacktimes = 1000,6000,1000,6000

busytone1 = tone1
busytone2 = tone1
busytimes = 250,250,250,250

[groups]

;configurando portas 1 a 30 como grupo 1 - primeiro E1
group = 1
ports => 1-30

[port_config]
; --- configuracao tipica do E1 configurado na rede publica
context=entrada
signalling=r2mfc_ndis_fixed
max_digits_rx=4
b_subscriber_hangup=0
port_id=4833810300
cid_pos=2
category=1
group_b_value=1                         ;1-FREE_CALLING
tx_gain = 0
rx_gain = 0
echocan=1
accountcode=e1
silence_threshold=-24
gen_dtmf=1
dtmf_to_asterisk=1
gen_ringback=1
callprogress=cp_default.cfg
language=pt_BR
ports => 1-30

[e1_config]
e1_sync=1
use_crc4=0
cards => 1