Hi,
IIR means If I Remember.
Are you also using keepalives sent by clients? I often read that NATs don't refresh their mapping on incoming traffic, you may want to take a look at client keepalives.
Mickael
On 21 באפר 2015, at 07:38, xuefeng zhang zhangxuefeng1007@gmail.com wrote:
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 miconda@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-bounces@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-bounces@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
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