[transport-defaults](!)
type                       = transport
bind                       = 0.0.0.0
local_net                  = 127.0.0.0/8
local_net                  = 10.0.0.0/8
local_net                  = 172.16.0.0/12
local_net                  = 192.168.0.0/16
external_media_address     = ${asterisk_public_ip}
external_signaling_address = ${asterisk_public_ip}

[transport-udp](transport-defaults)
protocol = udp

[transport-tcp](transport-defaults)
protocol = tcp

[transport-tls](transport-defaults)
protocol      = tls
bind          = 0.0.0.0:5061
method        = tlsv1_2
cert_file     = ${asterisk_public_tls_cert}
priv_key_file = ${asterisk_public_tls_key}
ca_list_path  = ${system_cadir_path}
verify_client = no
verify_server = yes
allow_reload  = yes