Hello, On 20/01/16 12:34, Aleš Šturm wrote: > > Hi all, > > > > > > I am using Kamailio 4.3 as Presence server and I have a question > regarding NOTIFY messages sent after publication status refresh. When > PUA sends refreshing PUBLISH request (before expiration) Kamailio > sends NOTIFY request. Large number of watchers per one presentity > causes large traffic. > > > > RFC3265 states: NOTIFY messages are sent to inform subscribers of > changes in state to which the subscriber has a subscription. > > > > But when publication is only refreshed (publication expiration is > extended) the publish state is not changed (PUBLISH without XML body). > > > > From RFC5839: The SIP PUBLISH [RFC3903] method uses a similar > mechanism, where a refresh of a publication is done by reference to > its assigned entity-tag, instead of retransmitting the event state > each time the publication expiration is extended. > > > > Is it possible to configure Kamailio that wouldn’t send NOTIFY request > to watchers when publication status refresh (PUBLISH without XML Body) > occur? >
no NOTIFY should be sent? Or the NOTIFY in this case should be sent without body, just with a new expire value and same etag? Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Book: SIP Routing With Kamailio - http://www.asipto.com http://miconda.eu
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