[global]
type=global
default_from_user=asterisk-254.45.2 ;Вводим в заблуждение тех,
default_realm=asterisk-254.45.2     ;Кто перехватит трафик и
user_agent=asterisk-254.45.2        ;Будет смотреть invite

[tr-udp]
type=transport
protocol=udp
bind=0.0.0.0:5060
local_net=192.168.1.0/24
local_net=192.168.88.0/24
local_net=172.16.88.0/24
local_net=10.10.25.0/24
local_net=10.11.12.0/24
external_media_address=4.3.2.1
external_signaling_address=4.3.2.1

[trunk]
type=endpoint
transport=tr-udp
context=in-trunk
allow=!all,alaw
aors=trunk
send_connected_line=false
language=ru
user_eq_phone=no
t38_udptl=no
t38_udptl_ec=none
fax_detect=no
trust_id_inbound=no
t38_udptl_nat=no
direct_media=yes
from_domain=1.2.3.4
identify_by=username,ip
from_user=4954954954
rtp_symmetric=yes
dtmf_mode=rfc4733

[trunk]
type=aor
qualify_frequency=60
contact=sip:1.2.3.4

[trunk]
type=identify
endpoint=trunk
match=1.2.3.4/255.255.255.255