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

Hai Bui Duc Ha hai.bui at htklabs.com
Mon Mar 13 12:11:19 CET 2017


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
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