Hello,
My setup is:
Kamailio (as sip proxy) -> Asterisk (as business logic and features).
Kamailio have public ip, trunk between Kamailio and Asterisk uses private ip.
Phone A and B behind NAT.
Callflow is - Phone A -> Kamailio -> Asterisk -> Kamailio -> Phone B.
1 leg: Phone A sends Invite to Kam, then Kam adds Record-Route (with kam public ip) and sends Invite to Asterisk.
2 leg: Asterisk makes some magic and then send Invite back to Kam, then Kam sends to Phone B.
Call established, but on 2 leg when Asterisk receives 200OK from Kamailio, it sends ACK to Kamailio from it’s public ip.
After this I’m also have problem on 1 leg with BYE, because Asterisk also sends BYE to Kamailio from public ip.
Question is why asterisk sends messages from public and how to configure it to send from private?
Endpoint configuration:
Endpoint: <Endpoint/CID.....................................> <State.....> <Channels.>
I/OAuth: <AuthId/UserName...........................................................>
Aor: <Aor............................................> <MaxContact>
Contact: <Aor/ContactUri..........................> <Hash....> <Status> <RTT(ms)..>
Transport: <TransportId........> <Type> <cos> <tos> <BindAddress..................>
Identify: <Identify/Endpoint.........................................................>
Match: <criteria.........................>
Channel: <ChannelId......................................> <State.....> <Time.....>
Exten: <DialedExten...........> CLCID: <ConnectedLineCID.......>
==========================================================================================
Endpoint: kamailio-dev Not in use 0 of inf
Aor: kamailio-aor 0
Contact: kamailio-aor/sip:privateIP:port da2aa7a151 NonQual nan
Transport: transport-udp udp 0 0 privateIP:port
Identify: kamailio-identify/kamailio-dev
Match: privateIP/32
ParameterName : ParameterValue
=========================================================
100rel : no
accept_multiple_sdp_answers : false
accountcode :
acl :
aggregate_mwi : true
allow : (ulaw|alaw)
allow_overlap : true
allow_subscribe : true
allow_transfer : true
aors : kamailio-aor
asymmetric_rtp_codec : false
auth :
bind_rtp_to_media_address : false
bundle : false
call_group :
callerid : <unknown>
callerid_privacy : allowed_not_screened
callerid_tag :
connected_line_method : invite
contact_acl :
context : kamailio
cos_audio : 0
cos_video : 0
device_state_busy_at : 0
direct_media : false
direct_media_glare_mitigation : none
direct_media_method : invite
disable_direct_media_on_nat : false
dtls_auto_generate_cert : No
dtls_ca_file :
dtls_ca_path :
dtls_cert_file :
dtls_cipher :
dtls_fingerprint : SHA-256
dtls_private_key :
dtls_rekey : 0
dtls_setup : active
dtls_verify : No
dtmf_mode : rfc4733
fax_detect : false
fax_detect_timeout : 0
follow_early_media_fork : true
force_avp : false
force_rport : false
from_domain :
from_user :
g726_non_standard : false
ice_support : false
identify_by : ip
ignore_183_without_sdp : false
inband_progress : false
incoming_mwi_mailbox :
language :
mailboxes :
max_audio_streams : 1
max_video_streams : 1
media_address : xx.xx.xx.xx
media_encryption : no
media_encryption_optimistic : false
media_use_received_transport : false
message_context :
moh_passthrough : false
moh_suggest : default
mwi_from_user :
mwi_subscribe_replaces_unsolicited : no
named_call_group :
named_pickup_group :
notify_early_inuse_ringing : false
one_touch_recording : false
outbound_auth :
outbound_proxy :
pickup_group :
preferred_codec_only : false
record_off_feature : automixmon
record_on_feature : automixmon
refer_blind_progress : true
rewrite_contact : false
rpid_immediate : false
rtcp_mux : false
rtp_engine : asterisk
rtp_ipv6 : false
rtp_keepalive : 0
rtp_symmetric : false
rtp_timeout : 0
rtp_timeout_hold : 0
sdp_owner : -
sdp_session : Asterisk
send_connected_line : yes
send_diversion : true
send_pai : false
send_rpid : false
set_var :
srtp_tag_32 : false
sub_min_expiry : 0
subscribe_context :
suppress_q850_reason_headers : false
t38_udptl : false
t38_udptl_ec : none
t38_udptl_ipv6 : false
t38_udptl_maxdatagram : 0
t38_udptl_nat : false
timers : yes
timers_min_se : 90
timers_sess_expires : 1800
tone_zone :
tos_audio : 0
tos_video : 0
transport : transport-udp
trust_connected_line : yes
trust_id_inbound : false
trust_id_outbound : false
use_avpf : false
use_ptime : false
user_eq_phone : false
voicemail_extension :
webrtc : no
Sngrep callflow:
1 leg:
2leg:
