Please send the PCAP file recorded on Kamailio.
Need to see whole exchange to FreeSwitch and to provider.

Sergey.

On Thu, Jul 11, 2024 at 10:32 AM Ghulam Mustafa via sr-users <
[email protected]> wrote:

> Hi Community,
>
> We are setting up a new provider in our VoIP setup for outgoing calls
> (FreeSWITCH --> Kamailio --> Provider).
>
> When the provider sends a 200 OK in response to our INVITE, FreeSWITCH's
> SIP stack discards the message, and we are unable to determine the cause of
> this behavior.
>
> I am sharing the SIP message exchange below. Could any SIP experts assist
> us in understanding why FreeSWITCH is not sending an ACK in response to the
> 200 OK message?
>
> We understand that the issue is not related to Kamailio but seems to be
> within the SIP stack or FreeSWITCH itself.
>
> Below are the actual INVITE and its response, which was discarded by
> FreeSWITCH:
>
> send 1203 bytes to tcp/[10.xxx.x.30]:5060 at 15:48:23.001054:
> ------------------------------------------------------------------------
> INVITE sip:[email protected];transport=tcp SIP/2.0
> Via: SIP/2.0/TCP 10.xxx.x.10:5080;rport;branch=z9hG4bKD8p0KmvB8ZKma
> Max-Forwards: 69
> From: "+1xxxxxxxxxx" <sip:[email protected]>;tag=ZSvBBtypKypDS
> To: <sip:[email protected]>
> Call-ID: 21b7b9b5-b8a5-123d-63a6-ecf4bbd64f6c
> CSeq: 85714459 INVITE
> Contact: <sip:[email protected]:5080;transport=tcp;gw=commsgroup>
> User-Agent: FreeSWITCH-mod_sofia/1.10.11-release~64bit
> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
> REGISTER, REFER, NOTIFY
> Supported: timer, path, replaces
> Allow-Events: talk, hold, conference, refer
> Content-Type: application/sdp
> Content-Disposition: session
> Content-Length: 347
> X-FS-Support: update_display,send_info
> Remote-Party-ID: "+1xxxxxxxxxx" <sip:[email protected]
> >;party=calling;screen=yes;privacy=off
>
> v=0
> o=Z 5395246197255529491 693195311 IN IP4 10.xxx.x.225
> s=Z
> c=IN IP4 10.xxx.x.225
> t=0 0
> m=audio 55319 RTP/AVP 106 9 98 101 0 8 3
> a=rtpmap:106 opus/48000/2
> a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
> a=rtpmap:98 telephone-event/48000
> a=fmtp:98 0-16
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-16
> a=rtcp-mux
>
> tport.c:2316 tport_set_secondary_timer() tport(0x150e6c0291c0): reset
> timer
> nta.c:8400 outgoing_send() nta: sent INVITE (85714459) to
> tcp/10.xxx.x.30:5060
> tport.c:4191 tport_pend() tport_pend(0x150e6c0291c0): pending
> 0x150e6c0c52f0 for tcp/10.xxx.x.30:5060 (already 2)
> nua_session.c:4131 signal_call_state_change() nua(0x150d9c107460): call
> state changed: init -> calling, sent offer
> soa.c:1268 soa_get_local_sdp() soa_get_local_sdp(static::0x150e6c0c0210,
> [0x150e91772798], [0x150e91772790], [(nil)]) called
> nua_stack.c:299 nua_stack_event() nua(0x150d9c107460): event i_state
> INVITE sent
> nua_stack.c:389 nua_application_event() nua: nua_application_event:
> entering
> nua.c:1170 nua_handle_unref_user() nua
> nua_handle_unref_user(0x150d9c107460): entering
> nua.c:365 nua_handle_magic() nua: nua_handle_magic: entering
> nua_stack.c:558 nua_signal() nua(0x150d9c107460): sent signal
> r_handle_unref
> nua.c:1157 nua_unref_user() nua: nua_unref_user: entering
> 2024-07-09 15:48:22.985772 100.00% [DEBUG] sofia.c:7493 Channel
> sofia/external/+86xxxxxxxxxxx entering state [calling][0]
> nua_stack.c:599 nua_stack_signal() nua(0x150d9c107460): recv signal
> r_handle_unref
> nua.c:365 nua_handle_magic() nua: nua_handle_magic: entering
> nua_stack.c:558 nua_signal() nua((nil)): sent signal r_unref
> nua.c:1170 nua_handle_unref_user() nua
> nua_handle_unref_user(0x150d9c107460): entering
> nua_stack.c:599 nua_stack_signal() nua((nil)): recv signal r_unref
> nua_stack.c:558 nua_signal() nua(0x150d9c107460): sent signal
> r_handle_unref
> nua_stack.c:599 nua_stack_signal() nua(0x150d9c107460): recv signal
> r_handle_unref
> nua.c:1157 nua_unref_user() nua: nua_unref_user: entering
> nua_stack.c:558 nua_signal() nua((nil)): sent signal r_unref
> nua_stack.c:599 nua_stack_signal() nua((nil)): recv signal r_unref
> 2024-07-09 15:48:22.985772 100.00% [DEBUG] switch_core_state_machine.c:659
> (sofia/external/+86xxxxxxxxxxx) State CONSUME_MEDIA
> 2024-07-09 15:48:22.985772 100.00% [DEBUG] switch_core_state_machine.c:659
> (sofia/external/+86xxxxxxxxxxx) State CONSUME_MEDIA going to sleep
> tport.c:2796 tport_wakeup() tport_wakeup(0x150e6c0291c0): events IN
> tport.c:2900 tport_recv_event() tport_recv_event(0x150e6c0291c0)
> tport.c:3237 tport_recv_iovec() tport_recv_iovec(0x150e6c0291c0) msg
> 0x150e6c0cb390 from (tcp/10.xxx.x.30:5060) has 352 bytes, veclen = 1
> recv 352 bytes from tcp/[10.xxx.x.30]:5060 at 15:48:23.004029:
> ------------------------------------------------------------------------
> SIP/2.0 100 Trying
> Via: SIP/2.0/TCP
> 10.xxx.x.10:5080;rport=37555;branch=z9hG4bKD8p0KmvB8ZKma;received=10.xxx.x.10
> From: "+1xxxxxxxxxx" <sip:[email protected]>;tag=ZSvBBtypKypDS
> To: <sip:[email protected]>
> Call-ID: 21b7b9b5-b8a5-123d-63a6-ecf4bbd64f6c
> CSeq: 85714459 INVITE
> Server: Kamailio 5.8
> Content-Length: 0
>
>
> tport.c:3055 tport_deliver() tport_deliver(0x150e6c0291c0): msg
> 0x150e6c0cb390 (352 bytes) from tcp/10.xxx.x.30:5060/sip next=(nil)
> nta.c:3378 agent_recv_response() nta: received 100 Trying for INVITE
> (85714459)
> nta.c:3445 agent_recv_response() nta: 100 Trying is going to a transaction
> nta.c:9697 outgoing_estimate_delay() nta_outgoing: RTT is 3.038 ms
> tport.c:4253 tport_release() tport_release(0x150e6c0291c0): 0x150e6c0c52f0
> by 0x150e6c0be9a0 with 0x150e6c0cb390 (preliminary)
> tport.c:2316 tport_set_secondary_timer() tport(0x150e6c0291c0): reset
> timer
> nta.c:5904 incoming_reclaim_queued() incoming_reclaim_all((nil), (nil),
> 0x150e91973a50)
> nta.c:7270 _nta_incoming_timer() nta_incoming_timer: 0/0 resent, 0/0
> tout, 0/0 term, 2/3 free
> nta.c:1310 agent_timer() nta: timer not set
> tport.c:2796 tport_wakeup() tport_wakeup(0x150e6c0291c0): events IN
> tport.c:2900 tport_recv_event() tport_recv_event(0x150e6c0291c0)
> tport.c:3237 tport_recv_iovec() tport_recv_iovec(0x150e6c0291c0) msg
> 0x150e6c0c9d90 from (tcp/10.xxx.x.30:5060) has 1195 bytes, veclen = 1
> recv 1195 bytes from tcp/[10.xxx.x.30]:5060 at 15:48:27.070278:
> ------------------------------------------------------------------------
> SIP/2.0 200 OK
> Via: SIP/2.0/TCP
> 10.xxx.x.10:5080;received=10.xxx.x.10;rport=37555;branch=z9hG4bKD8p0Km
> From: "+1xxxxxxxxxx" <sip:[email protected]>;tag=ZSvBBtypKypDS
> To: <sip:[email protected]
> >;tag=7bQ0OSl9Dl-39455-57712329-1057554-14
> Call-ID: 21b7b9b5-b8a5-123d-63a6-ecf4bbd64f6c
> CSeq: 85714459 INVITE
> Contact:
> <sip:127.0.0.8;line=sr-H46V9.fbsXNDlkfEJjGbujK3J4aDo1GzP5GOJ8hcsXwV9LAWw1abHkqWlXczwL7*>
> Record-Route:
> <sip:13x.xxx.xxx.xx;transport=tcp;lr;ftag=ZSvBBtypKypDS;did=cbd.e581;nat=yes>
> Supported: sdp-anat
> Allow:
> INVITE,PRACK,ACK,UPDATE,CANCEL,BYE,OPTIONS,INFO,SUBSCRIBE,REFER,NOTIFY
> Require: timer
> Session-Expires: 2000;refresher=uas
> Server: Mediant VE SBC/v.7.40A.250.265
> P-Asserted-Identity: <sip:[email protected];user=phone>
> Accept: application/sdp, application/isup, multipart/mixed,
> application/dtmf, application/dtmf-relay
> Content-Type: application/sdp
> Content-Length: 219
> User-Agent: Kamailio 5.8
>
> v=0
> o=- 846721169 1919912032 IN IP4 13x.xxx.xxx.xx
> s=-
> c=IN IP4 13x.xxx.xxx.xx
> t=0 0
> m=audio 49708 RTP/AVP 8 101
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> a=sendrecv
> a=rtcp:49709
>
> tport.c:3055 tport_deliver() tport_deliver(0x150e6c0291c0): msg
> 0x150e6c0c9d90 (1195 bytes) from tcp/10.xxx.x.30:5060/sip next=(nil)
> nta.c:3378 agent_recv_response() nta: received 200 OK for INVITE
> (85714459)
> nta.c:3494 agent_recv_response() nta: 200 OK was discarded
>
>
> Any insights or suggestions would be greatly appreciated,
>
> Specifically, why is the 200 OK response being discarded?. Thank you!
>
>
> Regards,
>
> Mustafa
>
>
>
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