15 Feb
2023
15 Feb
'23
9:19 p.m.
Hi,
your Kamailio version is very old (4.3) and unsupported, so my first advice
would be to upgrade to a recent version (5.6.3 is the latest stable).
Anyhow, your problem is not the kamailio version you are using but the fact
that the Contact header URI of the re-INVITE 200 OK only contains the
private port and not the public one, thus the R-URI in the ACK only
contains the private one and Kamailio cannot do anything else than
forwarding the ACK there. The 200 OK Contact URI relied to the re-INVITE's
sender should contain an 'alias' parameter (like in the re-INVITE R-URI)
with the public IP/port. You can add it using natheper's add_contact_alias
function (module
https://www.kamailio.org/docs/modules/5.6.x/modules/nathelper.html#nathelpe…):
be sure that you call it in the reply route that processes the 200 OK. Then
upon receiving the ACK use handle_ruti_alias function from the same module
to forward it to the public/ip/port.
Hope this helps,
Federico
On Wed, Feb 15, 2023 at 7:06 PM Angelo Sipper <sippro97(a)gmail.com> wrote:
None?
Στις Σάβ 11 Φεβ 2023 στις 5:55 π.μ., ο/η Angelo Sipper <sippro97(a)gmail.com>
έγραψε:
Any sugestions?
Στις Παρ 27 Ιαν 2023 στις 9:04 μ.μ., ο/η Angelo Sipper <
sippro97(a)gmail.com> έγραψε:
> Hi,
>
> Any help on this topic?
>
> Regards,
> Angelo
>
> Στις Πέμ 26 Ιαν 2023 στις 9:33 μ.μ., ο/η Angelo Sipper <
> sippro97(a)gmail.com> έγραψε:
>
>> Hi,
>>
>> My setup has: (TLS)UAC 77.1.1.1 -> (TLS)Kamailio 17.17.17.211 (UDP) ->
>> (UDP)Kamailio 17.17.17.181 (UDP) -> Carrier(UDP)
>> Both Kamailio are 4.3 with minor modifications on default cfg, and
>> Topoh and TLS modules are used.
>>
>> I am having an issue on some outbound calls from nated UACs. On these
>> calls our SBC sometimes receives reverse invites from the carrier side
>> within the call. When this happens, my SBC(17.17.17.211) sends the invite
>> to UAC and the UAC sends back 200 OK (SDP). Unfortunately my
>> SBC(17.17.17.211) sends back the ACK not to the correct UAC public port but
>> instead to the UAC internal port making the call to crash with several
>> retries from my SBC to send 200 OK as ACK was never received from UAC!
>>
>> If you look the below traces of reverse invite past within the call,
>> the reinvite has port private 20125 and alias the public port 2314 of UAC
>> but the ACK bellow is send to 20125 and not to 2314
>>
>> 2023/01/26 09:48:30.668634 17.17.17.181:5060 -> 17.17.17.211:5060
>> INVITE sip:301234567890@77.1.1.1:20125;alias=77.1.1.1~2314~1 SIP/2.0
>> Via: SIP/2.0/UDP
>> 17.17.17.181;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0
>> From: <sip:300987654321@sip.mydomain.com>;tag=gK0e80b4b9
>> To: "301234567890"
<sip:301234567890@sip.mydomain.com>;tag=07ece97c
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 INVITE
>> Max-Forwards: 69
>> Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS
>> Accept: application/sdp, application/isup, application/dtmf,
>> application/dtmf-relay, multipart/mixed
>> Supported: timer
>> Session-Expires: 600;refresher=uas
>> Min-SE: 90
>> Content-Length: 297
>> Content-Disposition: session; handling=required
>> Content-Type: application/sdp
>> Route:
>>
<sip:17.17.17.211;lr;ftag=07ece97c;vsf=AAAAAFpUAgECBwAACnAGAW5FUF4ZXUdDUUhEX1hRUC5ldQ--;vst=AAAAAAAAAAAAAAAAAAAAAABCXkYAQkdeVEJDQVtSVBRQRTYw;did=5fc.669;nat=yes>
>> Contact: <sip:atpsh-b5-62dfd3a3-cd5ed-1d354@17.17.17.181>
>>
>> v=0
>> o=Sonus_UAC 14218 13519 IN IP4 14.1.1.30
>> s=SIP Media Capabilities
>> c=IN IP4 14.1.1.30
>> t=0 0
>> m=audio 18600 RTP/AVP 8 18 101
>> a=maxptime:20
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:18 G729/8000
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:18 annexb=no
>> a=fmtp:101 0-15
>> a=sendrecv
>> a=rtcp:18601
>>
>>
>> 2023/01/26 09:48:30.679743 17.17.17.211:5060 -> 17.17.17.181:5060
>> SIP/2.0 100 trying -- your call is important to us
>> Via: SIP/2.0/UDP
>> 17.17.17.181;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0;rport=5060
>> From: <sip:300987654321@sip.mydomain.com>;tag=gK0e80b4b9
>> To: "301234567890"
<sip:301234567890@sip.mydomain.com>;tag=07ece97c
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 INVITE
>> Server: Supervoice
>> Content-Length: 0
>>
>>
>>
>> 2023/01/26 09:48:30.740803 17.17.17.211:5060 -> 77.1.1.1:2314
>> INVITE sip:301234567890@77.1.1.1:20125 SIP/2.0
>> Via: SIP/2.0/UDP
>> 17.17.17.211;branch=z9hG4bK7b5d.90b692fac0d1cc8a2ac460a67a02aec9.0
>> Via: SIP/2.0/UDP
>> 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0
>> From: <sip:300987654321@17.17.17.211:5060>;tag=gK0e80b4b9
>> To: "301234567890" <sip:MyTrunk@77.1.1.1:20125>;tag=07ece97c
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 INVITE
>> Max-Forwards: 68
>> Allow: INVITE,ACK,CANCEL,BYE,INFO,PRACK,UPDATE,OPTIONS
>> Accept: application/sdp, application/isup, application/dtmf,
>> application/dtmf-relay, multipart/mixed
>> Supported: timer
>> Session-Expires: 600;refresher=uas
>> Min-SE: 90
>> Content-Length: 297
>> Content-Disposition: session; handling=required
>> Content-Type: application/sdp
>> Contact: <sip:atpsh-b5-62dfd3a3-cd5ed-1d354@17.17.17.181>
>>
>> v=0
>> o=Sonus_UAC 14218 13519 IN IP4 14.1.1.28
>> s=SIP Media Capabilities
>> c=IN IP4 14.1.1.28
>> t=0 0
>> m=audio 13288 RTP/AVP 8 18 101
>> a=maxptime:20
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:18 G729/8000
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:18 annexb=no
>> a=fmtp:101 0-15
>> a=sendrecv
>> a=rtcp:13289
>>
>>
>> 2023/01/26 09:48:30.893512 77.1.1.1:2314 -> 17.17.17.211:5060
>> SIP/2.0 100 Trying
>> Via: SIP/2.0/UDP
>> 17.17.17.211;branch=z9hG4bK7b5d.90b692fac0d1cc8a2ac460a67a02aec9.0
>> Via: SIP/2.0/UDP
>> 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0
>> To: "301234567890" <sip:MyTrunk@77.1.1.1:20125>;tag=07ece97c
>> From: <sip:300987654321@17.17.17.211:5060>;tag=gK0e80b4b9
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 INVITE
>> Content-Length: 0
>>
>>
>>
>> 2023/01/26 09:48:31.026742 77.1.1.1:2314 -> 17.17.17.211:5060
>> SIP/2.0 200 OK
>> Via: SIP/2.0/UDP
>> 17.17.17.211;branch=z9hG4bK7b5d.90b692fac0d1cc8a2ac460a67a02aec9.0
>> Via: SIP/2.0/UDP
>> 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0
>> Require: timer
>> Contact: <sip:301234567890@77.1.1.1:20125>
>> To: "301234567890"<sip:MyTrunk@77.1.1.1:20125>;tag=07ece97c
>> From: <sip:300987654321@17.17.17.211:5060>;tag=gK0e80b4b9
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 INVITE
>> Session-Expires: 600;refresher=uas
>> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY,
>> REFER, INFO, MESSAGE, UPDATE
>> Content-Type: application/sdp
>> Supported: replaces, timer
>> User-Agent: 3CXPhoneSystem 18.0.6.905 (905)
>> Content-Length: 259
>>
>> v=0
>> o=3cxPS 792019937001472 2393157908037634 IN IP4 77.1.1.1
>> s=3cxPS Audio call
>> c=IN IP4 77.1.1.1
>> t=0 0
>> m=audio 9054 RTP/AVP 8 18 101
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:18 G729/8000
>> a=fmtp:18 annexb=no
>> a=rtpmap:101 telephone-event/8000
>> a=sendrecv
>>
>>
>> 2023/01/26 09:48:31.093656 17.17.17.211:5060 -> 17.17.17.181:5060
>> SIP/2.0 200 OK
>> Via: SIP/2.0/UDP
>> 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.78276307977b5b2776919ce1f1e76d49.0
>> Require: timer
>> Contact: <sip:301234567890@77.1.1.1:20125>
>> To: "301234567890"
<sip:301234567890@sip.mydomain.com>;tag=07ece97c
>> From: <sip:300987654321@sip.mydomain.com>;tag=gK0e80b4b9
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 INVITE
>> Session-Expires: 600;refresher=uas
>> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY,
>> REFER, INFO, MESSAGE, UPDATE
>> Content-Type: application/sdp
>> Supported: replaces, timer
>> User-Agent: 3CXPhoneSystem 18.0.6.905 (905)
>> Content-Length: 276
>>
>> v=0
>> o=3cxPS 792019937001472 2393157908037634 IN IP4 14.1.1.28
>> s=3cxPS Audio call
>> c=IN IP4 14.1.1.28
>> t=0 0
>> m=audio 13278 RTP/AVP 8 18 101
>> a=rtpmap:8 PCMA/8000
>> a=rtpmap:18 G729/8000
>> a=rtpmap:101 telephone-event/8000
>> a=fmtp:18 annexb=no
>> a=sendrecv
>> a=rtcp:13279
>>
>>
>> 2023/01/26 09:48:31.254591 17.17.17.181:5060 -> 17.17.17.211:5060
>> ACK sip:301234567890@77.1.1.1:20125 SIP/2.0
>> Via: SIP/2.0/UDP
>> 17.17.17.181;branch=z9hG4bK7b5d.48f49235d45a0f6f9efdad9d6d8224bd.0
>> From: <sip:300987654321@sip.mydomain.com>;tag=gK0e80b4b9
>> To: "301234567890"
<sip:301234567890@sip.mydomain.com>;tag=07ece97c
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 ACK
>> Max-Forwards: 69
>> Content-Length: 0
>> Route:
>>
<sip:17.17.17.211;lr;ftag=07ece97c;vsf=AAAAAFpUAgECBwAACnAGAW5FUF4ZXUdDUUhEX1hRUC5ldQ--;vst=AAAAAAAAAAAAAAAAAAAAAABCXkYAQkdeVEJDQVtSVBRQRTYw;did=5fc.669;nat=yes>
>> Contact: <sip:atpsh-b5-62dfd3a3-cd5ed-1d354@17.17.17.181>
>>
>>
>>
>> 2023/01/26 09:48:31.260901 17.17.17.211:5060 -> 77.1.1.1:20125
>> ACK sip:301234567890@77.1.1.1:20125 SIP/2.0
>> Via: SIP/2.0/UDP
>> 17.17.17.211;branch=z9hG4bK7b5d.e8fb34e79623843d516ae77257014e2d.0
>> Via: SIP/2.0/UDP
>> 17.17.17.181;rport=5060;branch=z9hG4bK7b5d.48f49235d45a0f6f9efdad9d6d8224bd.0
>> From: <sip:300987654321@17.17.17.211:5060>;tag=gK0e80b4b9
>> To: "301234567890" <sip:MyTrunk@77.1.1.1:20125>;tag=07ece97c
>> Call-ID: 1q5nE37RGZ8a8ChI6rqShw..
>> CSeq: 29227 ACK
>> Max-Forwards: 68
>> Content-Length: 0
>> Contact: <sip:atpsh-b5-62dfd3a3-cd5ed-1d354@17.17.17.181>
>>
>> Any help will be much appreciated.
>>
>> Thank you!
>> Regards,
>> Angelo
>>
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