Hi Alex,
Thanks for your reply.
ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process.
[cid:image001.png@01D62AC5.FBF723D0]
Best Regards,
Rex
-----Original Message----- From: sr-users sr-users-bounces@lists.kamailio.org On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 12:18 AM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Issue of calls drop 32s
It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK).
-- Alex
On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote:
Hi,
It’s weird that the calls always drop after 32s while the callee is using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS.
Moreover, I cannot see “Received” in AOR as the callee finish the registration.
I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(), the problem can be resolved.
My scenario is as below, for your reference.
1.Kamailio version is 4.4.7, listening public ip.
2.Caller it’s behind NAT.
3.Clients of Linphone.
Do you know the reason why it happened?
Best Regards,
Rex
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Hi,
Do you need further information? Actually, I am not sure if the process is normal, there‘s no problem with the call at least. Could it be caused any problem if all clients do fix_nated_register?
Best Regards, Rex
From: Rex Lin (林昱頡) Sent: Friday, May 15, 2020 2:37 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Issue of calls drop 32s
Hi Alex,
Thanks for your reply. ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process.
Best Regards, Rex
-----Original Message----- From: sr-users <sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org> On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 12:18 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Issue of calls drop 32s
It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK).
-- Alex
On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote:
Hi,
It’s weird that the calls always drop after 32s while the callee is using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS.
Moreover, I cannot see “Received” in AOR as the callee finish the registration.
I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(), the problem can be resolved.
My scenario is as below, for your reference.
1.Kamailio version is 4.4.7, listening public ip.
2.Caller it’s behind NAT.
3.Clients of Linphone.
Do you know the reason why it happened?
Best Regards,
Rex
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Hello,
you have to provide the PCAP (or ngrep output) for such a call taken on kamailio system to see the headers of each sip message and try to understand where the issue is.
Cheers, Daniel
On 18.05.20 09:38, Rex Lin (林昱頡) wrote:
Hi, Do you need further information? Actually, I am not sure if the process is normal, there‘s no problem with the call at least. Could it be caused any problem if all clients do fix_nated_register? Best Regards, Rex *From:* Rex Lin (林昱頡) *Sent:* Friday, May 15, 2020 2:37 PM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org *Subject:* Re: [SR-Users] Issue of calls drop 32s Hi Alex, Thanks for your reply. ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process. Best Regards, Rex -----Original Message----- From: sr-users <_sr-users-bounces@lists.kamailio.org_ mailto:sr-users-bounces@lists.kamailio.org> On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 12:18 AM To: Kamailio (SER) - Users Mailing List <_sr-users@lists.kamailio.org_ mailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Issue of calls drop 32s It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK). -- Alex On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote:
Hi,
It’s weird that the calls always drop after 32s while the callee is
using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS.
Moreover, I cannot see “Received” in AOR as the callee finish the registration.
I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(), the
problem can be resolved.
My scenario is as below, for your reference.
1.Kamailio version is 4.4.7, listening public ip.
2.Caller it’s behind NAT.
3.Clients of Linphone.
Do you know the reason why it happened?
Best Regards,
Rex
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org mailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org mailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
Hi Daniel,
Thanks for your reply. Please refer to the attached output file from Homer which I replaced a few words.
Best Regards, Rex
From: Daniel-Constantin Mierla miconda@gmail.com Sent: Tuesday, May 19, 2020 1:53 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org; Rex Lin (林昱頡) Rex.Lin@quantatw.com Subject: Re: [SR-Users] Issue of calls drop 32s
Hello,
you have to provide the PCAP (or ngrep output) for such a call taken on kamailio system to see the headers of each sip message and try to understand where the issue is.
Cheers, Daniel On 18.05.20 09:38, Rex Lin (林昱頡) wrote: Hi,
Do you need further information? Actually, I am not sure if the process is normal, there‘s no problem with the call at least. Could it be caused any problem if all clients do fix_nated_register?
Best Regards, Rex
From: Rex Lin (林昱頡) Sent: Friday, May 15, 2020 2:37 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org Subject: Re: [SR-Users] Issue of calls drop 32s
Hi Alex,
Thanks for your reply. ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process.
[cid:image001.jpg@01D62DF3.4649E8C0]
Best Regards, Rex
-----Original Message----- From: sr-users <sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org> On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 12:18 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Issue of calls drop 32s
It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK).
-- Alex
On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote:
Hi,
It’s weird that the calls always drop after 32s while the callee is using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS.
Moreover, I cannot see “Received” in AOR as the callee finish the registration.
I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(), the problem can be resolved.
My scenario is as below, for your reference.
1.Kamailio version is 4.4.7, listening public ip.
2.Caller it’s behind NAT.
3.Clients of Linphone.
Do you know the reason why it happened?
Best Regards,
Rex
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla -- www.asipto.comhttp://www.asipto.com
www.twitter.com/micondahttp://www.twitter.com/miconda -- www.linkedin.com/in/micondahttp://www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
Hello,
the contact in 200ok (as well as INVITE) have GRUU addresses, not the end point IP:PORT. For INVITE, you do set_/add_contact_alias(), but it is not done for 200ok.
If you enabled GRUU for registrar module, it should work without set_contact_alias(), by doing lookup("location") for requests within dialog. If the GRUU is done by devices without being enabled in Kamailio, try with set_contact_alias() for 200ok.
Then, do not forget to use handle_ruri_alias() for requests within dialog.
Cheers, Daniel
On 19.05.20 09:36, Rex Lin (林昱頡) wrote:
Hi Daniel,
Thanks for your reply.
Please refer to the attached output file from Homer which I replaced a few words.
Best Regards,
Rex
*From:*Daniel-Constantin Mierla miconda@gmail.com *Sent:* Tuesday, May 19, 2020 1:53 PM *To:* Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org; Rex Lin (林昱頡) Rex.Lin@quantatw.com *Subject:* Re: [SR-Users] Issue of calls drop 32s
Hello,
you have to provide the PCAP (or ngrep output) for such a call taken on kamailio system to see the headers of each sip message and try to understand where the issue is.
Cheers, Daniel
On 18.05.20 09:38, Rex Lin (林昱頡) wrote:
Hi, Do you need further information? Actually, I am not sure if the process is normal, there‘s no problem with the call at least. Could it be caused any problem if all clients do fix_nated_register? Best Regards, Rex *From:*Rex Lin (林昱頡) *Sent:* Friday, May 15, 2020 2:37 PM *To:* Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org> <mailto:sr-users@lists.kamailio.org> *Subject:* Re: [SR-Users] Issue of calls drop 32s Hi Alex, Thanks for your reply. ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process. Best Regards, Rex -----Original Message----- From: sr-users <sr-users-bounces@lists.kamailio.org <mailto:sr-users-bounces@lists.kamailio.org>> On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 12:18 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> Subject: Re: [SR-Users] Issue of calls drop 32s It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK). -- Alex On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote: > Hi, > > > It’s weird that the calls always drop after 32s while the callee is using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS. > > > Moreover, I cannot see “Received”in AOR as the callee finish the registration. > > > I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(), the problem can be resolved. > > > My scenario is as below, for your reference. > > 1.Kamailio version is 4.4.7, listening public ip. > > 2.Caller it’s behind NAT. > > 3.Clients of Linphone. > > > Do you know the reason why it happened? > > > > Best Regards, > > Rex > _______________________________________________ > Kamailio (SER) - Users Mailing List > sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org> > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ <http://www.csrpswitch.com/> _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users _______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org <mailto:sr-users@lists.kamailio.org> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users-- Daniel-Constantin Mierla -- www.asipto.com http://www.asipto.com www.twitter.com/miconda http://www.twitter.com/miconda -- www.linkedin.com/in/miconda http://www.linkedin.com/in/miconda Funding: https://www.paypal.me/dcmierla
Hi Daniel,
Sorry for the late reply, I have disabled GRUU to solve the problem due to it will take much time to be configured. Thanks for your great help.
Best Regards, Rex
From: Daniel-Constantin Mierla miconda@gmail.com Sent: Wednesday, May 20, 2020 3:15 PM To: Rex Lin (林昱頡) Rex.Lin@quantatw.com; Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: Re: [SR-Users] Issue of calls drop 32s
Hello,
the contact in 200ok (as well as INVITE) have GRUU addresses, not the end point IP:PORT. For INVITE, you do set_/add_contact_alias(), but it is not done for 200ok.
If you enabled GRUU for registrar module, it should work without set_contact_alias(), by doing lookup("location") for requests within dialog. If the GRUU is done by devices without being enabled in Kamailio, try with set_contact_alias() for 200ok.
Then, do not forget to use handle_ruri_alias() for requests within dialog.
Cheers, Daniel On 19.05.20 09:36, Rex Lin (林昱頡) wrote: Hi Daniel,
Thanks for your reply. Please refer to the attached output file from Homer which I replaced a few words.
Best Regards, Rex
From: Daniel-Constantin Mierla miconda@gmail.commailto:miconda@gmail.com Sent: Tuesday, May 19, 2020 1:53 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org; Rex Lin (林昱頡) Rex.Lin@quantatw.commailto:Rex.Lin@quantatw.com Subject: Re: [SR-Users] Issue of calls drop 32s
Hello,
you have to provide the PCAP (or ngrep output) for such a call taken on kamailio system to see the headers of each sip message and try to understand where the issue is.
Cheers, Daniel On 18.05.20 09:38, Rex Lin (林昱頡) wrote: Hi,
Do you need further information? Actually, I am not sure if the process is normal, there‘s no problem with the call at least. Could it be caused any problem if all clients do fix_nated_register?
Best Regards, Rex
From: Rex Lin (林昱頡) Sent: Friday, May 15, 2020 2:37 PM To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org Subject: Re: [SR-Users] Issue of calls drop 32s
Hi Alex,
Thanks for your reply. ICE/STUN haven’t been activated by our clients. All transmission traffic pass through a proxy server. Below is the screenshot of a normal call process.
[cid:image001.jpg@01D63E53.12C29CC0]
Best Regards, Rex
-----Original Message----- From: sr-users <sr-users-bounces@lists.kamailio.orgmailto:sr-users-bounces@lists.kamailio.org> On Behalf Of Alex Balashov Sent: Thursday, May 14, 2020 12:18 AM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org> Subject: Re: [SR-Users] Issue of calls drop 32s
It's a tell-tale sign of an end-to-end ACK from the caller not being forwarded properly to the callee. The server should not be forwarding such an ACK "to itself"; this suggests that its Request URI may be improperly constructed (it should be equivalent to the remote Contact URI of the callee in the 200 OK message), or that its Route headers are somehow incorrect (they should mirror the Record-Route set in the 200 OK).
-- Alex
On Wed, May 13, 2020 at 04:07:16PM +0000, Rex Lin (林昱頡) wrote:
Hi,
It’s weird that the calls always drop after 32s while the callee is using public ip. Also, Server forwards ACK to itself with UDP, instead of forwarding to callee with TLS.
Moreover, I cannot see “Received” in AOR as the callee finish the registration.
I recognized it’s marked by nat_uac_test(“19”) and set with fix_nated_register(), the problem can be resolved.
My scenario is as below, for your reference.
1.Kamailio version is 4.4.7, listening public ip.
2.Caller it’s behind NAT.
3.Clients of Linphone.
Do you know the reason why it happened?
Best Regards,
Rex
Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
-- Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________ Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.orgmailto:sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla -- www.asipto.comhttp://www.asipto.com
www.twitter.com/micondahttp://www.twitter.com/miconda -- www.linkedin.com/in/micondahttp://www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
--
Daniel-Constantin Mierla -- www.asipto.comhttp://www.asipto.com
www.twitter.com/micondahttp://www.twitter.com/miconda -- www.linkedin.com/in/micondahttp://www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla
-
Daniel-Constantin Mierla -
Rex Lin (林昱頡)