Hello,
regarding your questions:
1. Besides from the Kamailio core, you only need to use the modules that are
actually necessary for your configuration. There are over 220 modules, so they
are of course not always used.
2. Can't comment with too much detail here, but generally speaking, Kamailio
provides xcap modules and can also support external xcap servers I think.
Regarding the logic, certain things can be configured in the configuration,
some things are module parameter or depends on the processed presence events.
You can supply presence updates with SIP messages, over the RPC interface, over
json strings to name some options.
3. Kamailio for presence is usually chosen in particular because of other
solutions are not able to fulfil performance requirements. The concrete
performance numbers depend of course on your configuration, your database, your
storage etc.. You probably need to make some tests here.
Cheers,
Henning
> -Original Message-
> From: djcsalvador--- via sr-users
> Sent: Donnerstag, 15. Februar 2024 07:44
> To: sr-users@lists.kamailio.org
> Cc: djcsalva...@gmail.com
> Subject: [SR-Users] Kamailio as a Presence server only
>
> I all, I'm looking into Kamailio as a solution to replace our current Presence
> Server in our IMS Network, but feeling a bit overwhelmed by the feature size
> and complexity of Kamailio. I have a few questions (some might be dumb), if
> you guys could help me I would appreciate.
>
> 1. As I only need Kamailio as a Presence Server (with XCAP and SIP Interface),
> is there a way to install only the necessary components and/or modules? Our
> security team would probably raise some questions if we need to install
> unused code on the network. For what I could investigate, the modules i
> would need are:
> * Presence
> * Presence_XML
> * Xcap_server
> * xhttp
> * RLS
> * Pua
> * database
> * sl
> * tm
>
> Am I missing something?
>
> 2- As refered on point 1, our server will need a xcap and sip interface. Some
> presence updates will come through XCAP, others from SIP Publish. My
> question is, whenever a presence update is made through XCAP interface, will
> the kamailio server trigger the necessary SIP Notify to notify all Subscribed
> users ? I ask this because this was a problem with our current supplier.
>
> 3 - our client is a bit "peeky" with performance. I found here
> (https://www.kamailio.org/wikidocs/kemi/performance-tests/5.2.x/#results)
> some performance tests, but for what i can see the test primary goal was to
> test the response time. Is there any resource on "requests per second"?
>
> Thanks in advance for all the help
> David Salvador
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