I discovered a strange problem when running Freeswitch from docker on the local machine,
I have my machine API: 192.168.88.236
and docker with internal ip. 172.17.0.2. (local_ip_v4)
With the next changes relative to vanilla install:
autoload_configs/switch.conf.xml --- a narrow set of RTP ports.
internal.xml -- change ext-rtp-ip and ext-sip-ip to 192.168.88.236
Then I trying to run docker from macos which publish ports:
docker run -d -p 5060:5060/udp -p 5060:5060/tcp -p5061:5061/tcp -p 5080:5080/udp -p 5080:5080/tcp -p 5066:5066/tcp -p 7443:7443/tcp -p 63535-63635:63535-63635/tcp -p63535-64535:63535-64535/udp -p5555:5555 -p5050:5050 -p8000:8000 --hostname
zaka-voice zaka-freeswitch-recognition:0.0.1
And then when I try to call Freeswitch from linphone from the local net, I can hear an answer, but looks like IVR on the Freeswitch side not receive RTP stream.
One hypothesizes -- that FreeSWITCH not determinate existence of external_ip as NAT mode (?) and ask the phone to send RTP to 172.17.0.2.
How to verify this? Maybe exists some ideas, how to debug such situation behind a sip trace?
P.S. Additional info, if anybody found this interesting:
I.e. I see SIP invite from FreeSWITCH
SIP/2.0 100 Trying
Via: SIP/2.0/TCP 192.168.88.238:50091;branch=z9hG4bK.rNrD-0O~i;rport=51208;received=172.17.0.1
From: <sip:1002@192.168.88.236>;tag=4bI6NNSIi
To: "33332220" <sip:33332220@192.168.88.236>
Call-ID: 7At9kxIfv2
CSeq: 21 INVITE
User-Agent: FreeSWITCH-mod_sofia/1.10.4-dev-2421-8a5850ff26~64bit
Content-Length: 0
then Ok and Acc from linphone (which freeswitch see as on 172.17.0.2)
recv 354 bytes from tcp/[172.17.0.1]:51208 at 09:20:26.099724:
------------------------------------------------------------------------
SIP/2.0 200 Ok
Via: SIP/2.0/TCP 192.168.88.236;branch=z9hG4bK8502eXUvmSKyN
From: <sip:1002@172.17.0.2>;tag=mrr024e5DH57Q
To: <sip:1002@172.17.0.2>;tag=ftaVWOB
Call-ID: 940c69ac-4c1f-1239-4cb1-0242ac110002
CSeq: 23453420 NOTIFY
User-Agent: LinphoneiOS/4.3.1 (iPad Ruslan) LinphoneSDK/4.4.0
Supported: replaces, outbound, gruu
Content-Length: 0
recv 640 bytes from tcp/[172.17.0.1]:51208 at 09:20:26.514163:
------------------------------------------------------------------------
ACK sip:33332220@192.168.88.236:5060;transport=tcp SIP/2.0
Via: SIP/2.0/TCP 192.168.88.238:50091;rport;branch=z9hG4bK.iYrbMWTLP
From: <sip:1002@192.168.88.236>;tag=4bI6NNSIi
To: "33332220" <sip:33332220@192.168.88.236>;tag=N1HS4ZZ8atUtK
CSeq: 21 ACK
Call-ID: 7At9kxIfv2
Max-Forwards: 70
Proxy-Authorization: Digest realm="192.168.88.236", nonce="44104e4a-30cb-4277-8c31-61e437b6cbd1", algorithm=MD5, username="1002", uri="sip:33332220@192.168.88.236", response="756a3d3e3a76996988afa09a5544f1d1",
cnonce="CWKOLtHm9Z8eVYIm", nc=00000001, qop=auth
User-Agent: LinphoneiOS/4.3.1 (iPad Ruslan) LinphoneSDK/4.4.0
Content-Length: 0
Then freeswitch not see any activity and says BYE:
BYE sip:1002@172.17.0.1:51208;transport=tcp SIP/2.0
Via: SIP/2.0/TCP 192.168.88.236;branch=z9hG4bK9etUgrc0H29gH
Max-Forwards: 70
From: "33332220" <sip:33332220@192.168.88.236>;tag=N1HS4ZZ8atUtK
To: <sip:1002@192.168.88.236>;tag=4bI6NNSIi
Call-ID: 7At9kxIfv2
CSeq: 23453425 BYE
User-Agent: FreeSWITCH-mod_sofia/1.10.4-dev-2421-8a5850ff26~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
Supported: timer, path, replaces
Reason: Q.850;cause=16;text="NORMAL_CLEARING"
Content-Length: 0
freeswitch@zaka-voice> sofia status profile internal
=================================================================================================
Name internal
Domain Name N/A
Auto-NAT false
DBName sofia_reg_internal
Pres Hosts 172.17.0.2,172.17.0.2
Dialplan XML
Context public
Challenge Realm auto_from
RTP-IP 172.17.0.2
Ext-RTP-IP 192.168.88.236
SIP-IP 172.17.0.2
Ext-SIP-IP 192.168.88.236
URL
sip:mod_sofia@192.168.88.236:5060
BIND-URL
sip:mod_sofia@192.168.88.236:5060;maddr=172.17.0.2;transport=udp,tcp
WS-BIND-URL sip:mod_sofia@172.17.0.2:5066;transport=ws
WSS-BIND-URL sips:mod_sofia@172.17.0.2:7443;transport=wss
HOLD-MUSIC local_stream://moh
OUTBOUND-PROXY N/A
CODECS IN OPUS,G722,PCMU,PCMA,H264,VP8
CODECS OUT OPUS,G722,PCMU,PCMA,H264,VP8
TEL-EVENT 101
DTMF-MODE rfc2833
CNG 13
SESSION-TO 0
MAX-DIALOG 0
NOMEDIA false
LATE-NEG true
PROXY-MEDIA false
ZRTP-PASSTHRU true
AGGRESSIVENAT false
CALLS-IN 0
FAILED-CALLS-IN 0
CALLS-OUT 0
FAILED-CALLS-OUT 0
REGISTRATIONS 0
--