voice call is not connecting with the latest version

[ghost]

i have attached two samsung mobiles and able to see volte in both of them. SMS services are also working fine. But when I tried to attempt a voice call, it is showing as call ended. this is the log. the same log is coming again and again. in wireshark also, i dont see any sip or rtp messages while attempting to call.
rtpengine has error on binding fd 10 to port 2225.

scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2071]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_auth [authorize.c:187]: reg_await_timer(): Looking for expired/useless at 73147135
scscf | 5(43) DEBUG: ims_auth [authorize.c:241]: reg_await_timer(): [DONE] Looking for expired/useless at 73147135
rtpengine | [1707289144.721627] ERR: [http] libwebsockets: ERROR on binding fd 10 to port 2225 (-1 99)
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2060]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_dialog [dlg_handlers.c:2061]: print_all_dlgs(): printing 4096 dialogs
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2071]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_auth [authorize.c:187]: reg_await_timer(): Looking for expired/useless at 73147145
scscf | 5(43) DEBUG: ims_auth [authorize.c:241]: reg_await_timer(): [DONE] Looking for expired/useless at 73147145
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2060]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_dialog [dlg_handlers.c:2061]: print_all_dlgs(): printing 4096 dialogs
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2071]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_auth [authorize.c:187]: reg_await_timer(): Looking for expired/useless at 73147155
scscf | 5(43) DEBUG: ims_auth [authorize.c:241]: reg_await_timer(): [DONE] Looking for expired/useless at 73147155
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2060]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_dialog [dlg_handlers.c:2061]: print_all_dlgs(): printing 4096 dialogs
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2071]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_auth [authorize.c:187]: reg_await_timer(): Looking for expired/useless at 73147165
scscf | 5(43) DEBUG: ims_auth [authorize.c:241]: reg_await_timer(): [DONE] Looking for expired/useless at 73147165
rtpengine | [1707289174.722674] ERR: [http] libwebsockets: ERROR on binding fd 10 to port 2225 (-1 99)
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2060]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_dialog [dlg_handlers.c:2061]: print_all_dlgs(): printing 4096 dialogs
scscf | 5(43) DEBUG: ims_dialog [dlg_handlers.c:2071]: print_all_dlgs(): ******************** 5(43) DEBUG: ims_auth [authorize.c:187]: reg_await_timer(): Looking for expired/useless at 73147175
scscf | 5(43) DEBUG: ims_auth [authorize.c:241]: reg_await_timer(): [DONE] Looking for expired/useless at 73147175

@herlesupreeth kindly check once

[herlesupreeth]

Please post a tcpdump trace for the calling scenario in order to debug.

[herlesupreeth]

Please dont add + (a plus) before the number when attempting to place a call. Also, you are attempting a 5G call which as I mentioned before in other issues it may or may not work since there is no way to provision QoS (absence of N5 interface between P-CSCF and PCF) for 5G call.

[abcd11abcd]

this voice call working perfectly fine with the open5gs and kamailio ims on baremetal setup from this link. https://open5gs.org/open5gs/docs/tutorial/02-VoLTE-setup/.
only dockerized setup has the problem. same UE i'm using for both the cases. i tried removing + from the number and tried multiple ways. any solutions? @herlesupreeth

[herlesupreeth]

If the voice call worked perfectly fine with baremetal setup then it should works with dockerized one as well since there is practically no difference at all. Can you send me a trace of the call working on your bare metal setup using the same two phones?

[abcd11abcd]

sorry for the late reply. I have been trying to resolve this issue. I found that there is no NOTIFY message to the ue after registering to the ims network. And call also not happening. one more thing is, we observed that the sms is also not working if we try to send after making a call(anyway call is not success). im using two samsung phones.
im attaching the pcaps. kindly check @herlesupreeth

pcaps.zip

sip 100 try and 180 ringing messages are not there. Is this due to the absence of NOTIFY message?

When I'm debugging the logs, i suspect that scscf is not able to contact the ipsec ports of pcscf. For example, 6103 and 6101. @herlesupreeth kindly check

[herlesupreeth]

I dont see any traffic related to call. Please send pcap without any filters

[abcd11abcd]

Before calling only, the notify message has to go from scscf to pcscf and then to ue right?
Means the ue is not subscribed to use call services (ue sends subscribe request. But not receiving response). So call related sip packets are not flowing. It may be because of the scscf is not able to communicate to pcscf.
Is this procedure correct?

[herlesupreeth]

In order for that to happen UE needs to send SUBSCRIBE SIP message first

[abcd11abcd]

Ue is sending the subscribe sip. But the reply from scscf is not coming. Scscf is not responding to any messages from pcscf after attaching. It is unable access some ports of pcscf. That's what happening in the above wireshark logs also right? Can you check all these configurations are properly set in sip servers?

[herlesupreeth]

I dont see any SUBSCRIBE SIP message in your latest pcap. Please take a fresh trace for IMS registration