Hi Daniel, I understand your reply.The kamailio can set the "IIR" to send the OPTIONS packets period. But I don't found out the knowledge of the "IIR".
Would you give me some things how to do it. Thanks! Xuefeng Zhang 2015-04-20 18:10 GMT+08:00 Daniel-Constantin Mierla <mico...@gmail.com>: > IIR, the keepalives are sent stateless, so no transactions are create > for them. Just OPTIONS packets sent out, resulting in less load on > kamailio (well, comparing with normal transactional forwarding). The > mechanism behind detecting offline users with keepalives is based on a > counter kept in memory for the location record, which is reset if the > reply to OPTIONS comes back. If there are three (or so) keepalives sent > out and none was replied, then the record is removed. Practically there > is no retransmission for those keepalive requests, no special states, > just this counter in memory per location record. Given this, (again > iirc), this feature doesn't work with db_mode set to database only. > > Cheers, > Daniel > > On 20/04/15 10:46, Mickael Marrache wrote: > > Didn't know about that, it's interesting. > > > > I'm curious about the load impact of this feature, since keepalives are > > generally sent every 30 sec. > > > > -----Original Message----- > > From: sr-users [mailto:sr-users-boun...@lists.sip-router.org] On Behalf > Of > > Daniel Grotti > > Sent: Monday, April 20, 2015 11:40 AM > > To: sr-users@lists.sip-router.org > > Subject: Re: [SR-Users] Expect the kamailio's sip account is unregistered > > state when the client app is shutdown > > > > Hi, > > you may want to use: > > > > > http://www.kamailio.org/docs/modules/4.2.x/modules/nathelper.html#nathelper > . > > p.keepalive_timeout > > > > > > -- > > Daniel Grotti > > VoIP Engineer > > > > > > Sipwise GmbH > > Europaring F15 | 2345 Brunn am Gebirge, Austria | www.sipwise.com > > > > On 04/20/2015 10:34 AM, Filip Malenka wrote: > >> Thank you for information.. > >> What can Kamailio do about clients, that exit abnormally (e.g. crash, > turn > > off, ..) which do unregister properly? Can Kamailio send this "expire=0" > on > > behalf of these clients? > >> Can Kamailio determine that a client got offline based on e.g. TLS > > connection or other "heartbeats"? > >> On 20.04.2015 10:16, Daniel Grotti wrote: > >>> Hi, > >>> here you are: > >>> > >>> https://tools.ietf.org/html/rfc3665#section-2.4 > >>> > >>> > >>> > >>> -- > >>> Daniel Grotti > >>> VoIP Engineer > >>> > >>> > >>> Sipwise GmbH > >>> Europaring F15 | 2345 Brunn am Gebirge, Austria | www.sipwise.com > >>> > >>> On 04/20/2015 10:10 AM, Mickael Marrache wrote: > >>>> Hi, > >>>> > >>>> > >>>> > >>>> You need to configure your client to un register when the app is > closed. > >>>> > >>>> > >>>> > >>>> For that, your client must send a REGISTER with Expires: 0. > >>>> > >>>> > >>>> > >>>> Mickael > >>>> > >>>> > >>>> > >>>> *From:*sr-users [mailto:sr-users-boun...@lists.sip-router.org] *On > >>>> Behalf Of *xuefeng zhang > >>>> *Sent:* Monday, April 20, 2015 10:58 AM > >>>> *To:* Daniel-Constantin Mierla; Kamailio (SER) - Users Mailing List > >>>> *Subject:* [SR-Users] Expect the kamailio's sip account is > >>>> unregistered state when the client app is shutdown > >>>> > >>>> > >>>> > >>>> Hi Daniel, > >>>> > >>>> > >>>> > >>>> When the client's app is closed,the sip account may be registered > >>>> state,because the expired time may have some rest time.I want to > >>>> implement when the client's app is closed,the account also unregister. > >>>> > >>>> > >>>> > >>>> How can I implement this function?Would you give me some advices? > >>>> > >>>> > >>>> > >>>> Thanks! > >>>> > >>>> > >>>> > >>>> Xuefeng Zhang > >>>> > >>>> > >>>> > >>>> _______________________________________________ > >>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > >>>> list sr-users@lists.sip-router.org > >>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > >>>> > >>> _______________________________________________ > >>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > >>> list sr-users@lists.sip-router.org > >>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > >>> > >> > >> _______________________________________________ > >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > >> list sr-users@lists.sip-router.org > >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > >> > > _______________________________________________ > > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > > sr-users@lists.sip-router.org > > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > > > > > _______________________________________________ > > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > > sr-users@lists.sip-router.org > > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla > http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda > Kamailio World Conference, May 27-29, 2015 > Berlin, Germany - http://www.kamailioworld.com > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >
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