[SR-Users] [SIP Transaction] Handle Cancel message

Hai Bui Duc Ha hai.bui at htklabs.com
Mon Mar 20 14:07:43 CET 2017


Hi Daniel,

Do you have any ideas for this issue ?

Regards,
Hai Bui

On Mon, Mar 13, 2017 at 5:41 PM, Hai Bui Duc Ha <hai.bui at htklabs.com> wrote:

> Hi Daniel,
>
> I send you pcap files.
> Please take a look.
>
> Regards,
> Hai Bui
>
> On Sun, Mar 12, 2017 at 9:39 AM, Hai Bui Duc Ha <hai.bui at htklabs.com>
> wrote:
>
>> Hi Daniel,
>>
>> Sorry about this inconvenience.
>> I will update you later.
>>
>> Regards,
>> Hai Bui
>>
>> On Fri, Mar 10, 2017 at 7:47 PM, Daniel-Constantin Mierla <
>> miconda at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> the pcap files don't show much when I open them, maybe the email
>>> servers/clients corrupted the enconding, as I faced similar issues in the
>>> past -- can you make a tgz archive and resend them?
>>>
>>> Cheers,
>>> Daniel
>>>
>>> On 10/03/2017 04:49, Hai Bui Duc Ha wrote:
>>>
>>> Hi Daniel,
>>>
>>> I send you 2 files pcap, capture on server side.
>>> + Server: 192.168.1.77
>>> + Client: 192.168.1.134
>>> + Scenario:
>>>    User 102 call to ring group 777 - has user 100 (192.168.1.134) and
>>> user 101 (192.168.1.164).
>>>    User 100 is offline but it's configured push notification from Apple
>>> to wake up, register and receive INVITE.
>>>    I pick up phone on 101 but 100 can not receive the CANCEL message to
>>> stop the ringing tone.
>>>
>>> 1) Pusher_ok.pcap: User 100 can revice the CANCEL message.
>>> 2) Pusher_failed.pcap: As I told above, when user 101 pick up the phone,
>>> Freeswitch send CANCEL message to user 100. But when message go to
>>> Kamailio, Kamailio reply 481 - Call leg/transaction does not exist. (I
>>> can't capture this packets).
>>> I also include the log on Freeswitch send CANCEL message and revice the
>>> 481.
>>>
>>>  Kamailio doesn't send 481 from the C code in the case of call, it
>>> either receives it or it is something in config.
>>> => This is configure on kamailio: default.cfg, it check
>>> *t_check_trans()*
>>> =======================================================
>>> *route[PREPARE_INITIAL_REQUESTS]*
>>> *{*
>>> *    if (is_method("CANCEL")) {*
>>> *        if (t_check_trans()) {*
>>> *            route(RELAY);*
>>> *        } else {*
>>> *            sl_send_reply("481", "Call leg/transaction does not
>>> exist");*
>>> *        }*
>>> *        exit();*
>>> =======================================================
>>>
>>> Thank for your support !
>>>
>>> Regards,
>>> Hai Bui
>>>
>>> On Thu, Mar 9, 2017 at 8:27 PM, Daniel-Constantin Mierla <
>>> miconda at gmail.com> wrote:
>>>
>>>> Hello,
>>>>
>>>> can you provide pcap (or full ngrep output) for all messages of such a
>>>> call, from initial invite, including all responses and the other requests?
>>>> The sip trace has to be taken on kamailio server.
>>>>
>>>> Kamailio doesn't send 481 from the C code in the case of call, it
>>>> either receives it or it is something in config.
>>>>
>>>> Cheers,
>>>> Daniel
>>>>
>>>> On 09/03/2017 06:59, Hai Bui Duc Ha wrote:
>>>>
>>>> Hi all,
>>>>
>>>> I have problem when use module pusher on Kazoo.
>>>> The user after receive call from pusher can not receive the Cancel
>>>> message if have another people pick up this phone.
>>>> I trace log and debug on Kamailio and see the Freeswitch sent Cancel
>>>> message but Kamailio reply 481 - Call leg/transaction does not exist.
>>>>
>>>> The configure on Kamailio: default.cfg
>>>> =======================================================
>>>> *route[PREPARE_INITIAL_REQUESTS]*
>>>> *{*
>>>> *    if (is_method("CANCEL")) {*
>>>> *        if(t_lookup_cancel()) xlog("L_INFO","$ci|log|========
>>>> t_lookup_cancel()");*
>>>> *        xlog("L_INFO","$rm from $fu (IP:$si:$sp) ---CAPTURED IN
>>>> MAIN---\n");*
>>>> *        if (t_check_trans()) {*
>>>> *            xlog("L_INFO","$rm from $fu (IP:$si:$sp) ---CHECK TRANS
>>>> TRUE---\n");*
>>>> *            //xlog("L_INFO",
>>>> "$ci|log|====================================");*
>>>> *            route(RELAY);*
>>>> *        } else {*
>>>> *            xlog("L_INFO","$rm from $fu (IP:$si:$sp) ---CHECK TRANS
>>>> FALSE---\n");*
>>>> *            sl_send_reply("481", "Call leg/transaction does not
>>>> exist");*
>>>> *        }*
>>>> *        exit();*
>>>> *    } else if (is_method("ACK")) {*
>>>> *        if (t_check_trans()) {*
>>>> *            route(RELAY);*
>>>> *        }*
>>>> *        exit();*
>>>> *    }*
>>>> =======================================================
>>>>
>>>> As I read on http://kamailio.org/docs/modules/4.3.x/modules/tm.html#tm
>>>> .f.t_check_trans
>>>> Kamailio see the cancel message not same the transaction INVITE message.
>>>>
>>>> INVITE message:
>>>> ------------------------------------------------------------
>>>> ------------
>>>> INVITE sip:100 at quydang.htk.cvoice SIP/2.0
>>>> Via: SIP/2.0/UDP 192.168.1.77:11000;rport;branch=z9hG4bKK9jyp8mXUZHgS
>>>> Route: <sip:192.168.1.77:5060>
>>>> Max-Forwards: 49
>>>> From: "02 quy" <sip:102 at quydang.htk.cvoice>;tag=04K2SappeyDtj
>>>> To: <sip:100 at quydang.htk.cvoice>
>>>> Call-ID: 19fa9228-ef95-11e6-b473-1f645951fd7b
>>>> CSeq: 103030653 INVITE
>>>> Contact: <sip:mod_sofia at 192.168.1.77:11000>
>>>> User-Agent: Anttel
>>>> Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE,
>>>> REGISTER, REFER, NOTIFY, PUBLISH, SUBSCRIBE
>>>> Supported: path, replaces
>>>> Allow-Events: talk, hold, conference, presence, as-feature-event,
>>>> dialog, line-seize, call-info, sla, include-session-description,
>>>> presence.winfo, message-summary, refer
>>>> Content-Type: application/sdp
>>>> Content-Disposition: session
>>>> Content-Length: 247
>>>> X-AUTH-IP: 192.168.1.141
>>>> X-AUTH-PORT: 64799
>>>> X-KAZOO-AOR: sip:100 at quydang.htk.cvoice
>>>> X-KAZOO-PUSHER-Token-Proxy: sip:192.168.1.77:5060
>>>> X-KAZOO-PUSHER-Token-ID: 803F0D6610AC5979C6F0513A3A4BE6
>>>> 2E0BAF1530DC7A98C2C0DC13D784585FBE
>>>> X-KAZOO-PUSHER-Token-Type: apple
>>>> X-KAZOO-PUSHER-Token-App: com.htkinc
>>>> X-FS-Support: update_display,send_info
>>>> Remote-Party-ID: "02 quy" <sip:102 at quydang.htk.cvoice>;p
>>>> arty=calling;screen=yes;privacy=off
>>>>
>>>> v=0
>>>> o=FreeSWITCH 1486708670 1486708671 IN IP4 192.168.1.77
>>>> s=FreeSWITCH
>>>> c=IN IP4 192.168.1.77
>>>> t=0 0
>>>> m=audio 24764 RTP/AVP 0 8 101 13
>>>> a=rtpmap:0 PCMU/8000
>>>> a=rtpmap:8 PCMA/8000
>>>> a=rtpmap:101 telephone-event/8000
>>>> a=fmtp:101 0-16
>>>> a=ptime:20
>>>> ------------------------------------------------------------
>>>> ------------
>>>>
>>>> CANCEL message:
>>>> ------------------------------------------------------------
>>>> ------------
>>>> CANCEL sip:100 at quydang.htk.cvoice SIP/2.0
>>>> Via: SIP/2.0/UDP 192.168.1.77:11000;rport;branch=z9hG4bKK9jyp8mXUZHgS
>>>> Route: <sip:192.168.1.77:5060>
>>>> Max-Forwards: 49
>>>> From: "02 quy" <sip:102 at quydang.htk.cvoice>;tag=04K2SappeyDtj
>>>> To: <sip:100 at quydang.htk.cvoice>
>>>> Call-ID: 19fa9228-ef95-11e6-b473-1f645951fd7b
>>>> CSeq: 103030653 CANCEL
>>>> Reason: SIP;cause=200;text="Call completed elsewhere"
>>>> Content-Length: 0
>>>> ------------------------------------------------------------
>>>> ------------
>>>>
>>>> How can I know it same transaction ? We have any idea to solve this
>>>> problem ?
>>>> Thank for advice !
>>>>
>>>> Regards,
>>>> Hai Bui
>>>>
>>>> --
>>>> Hai Bui
>>>> VoIP engineer, Cvoice team, HTK-HCM Office
>>>> Mobile: +84-165-618-9876
>>>>
>>>>
>>>> _______________________________________________
>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>>
>>>> --
>>>> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
>>>> Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com
>>>> Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
>>>>
>>>> _______________________________________________ SIP Express Router
>>>> (SER) and Kamailio (OpenSER) - sr-users mailing list
>>>> sr-users at lists.sip-router.org http://lists.sip-router.org/cg
>>>> i-bin/mailman/listinfo/sr-users
>>>
>>> --
>>> Hai Bui
>>> VoIP engineer, Cvoice team, HTK-HCM Office
>>> Mobile: +84-165-618-9876
>>>
>>> --
>>> Daniel-Constantin Mierlawww.twitter.com/miconda -- www.linkedin.com/in/miconda
>>> Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com
>>> Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com
>>>
>>>
>>
>>
>> --
>> Hai Bui
>> VoIP engineer, Cvoice team, HTK-HCM Office
>> Mobile: +84-165-618-9876
>>
>
>
>
> --
> Hai Bui
> VoIP engineer, Cvoice team, HTK-HCM Office
> Mobile: +84-165-618-9876
>



-- 
Hai Bui
VoIP engineer, Cvoice team, HTK-HCM Office
Mobile: +84-165-618-9876
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