[SR-Users] Kamailio as a presence server

[Igor Olhovskiy]

Hi!
I want to create custom Presence server. Main idea - phones subscribes to
it (for ex, extension 100 at domain). This subscription actually lit BLF
button on a phone.
But main idea - change status of BLF can arrive from different locations
via PUBLISH, I assume.
Problem - phones has different type of SUBSCRIBE, like
dialog(application/dialog-info+xml) or presence(application/pidf+xml). Some
of phones are not fully follow RFC (Like using in SUBSCRIBE R-URI not
domain, but IP, but in From or To - domains are used)
Phones are registered elsewhere, not on Kamailio. After reading RFC
(especially event:dialog part) I’ve found about SIP-If-Match part, but
problem about sync this data across multiple PUBLISH locations.
Can be Kamailio be a presence server in this scenario?

For ex, SUBSCRIBE

SUBSCRIBE sip:212.232.26.232:5060;transport=udp SIP/2.0
Via: SIP/2.0/UDP 192.168.88.60:5060;branch=z9hG4bK1656003104;rport
From: <sip:608 at master.rufan.at>;tag=521811605
To: <sip:*55 at master.rufan.at>;tag=05ea6038656678bd0198b8977f3c0221.4e93
Call-ID: 805970257-5060-2 at BJC.BGI.II.GA
CSeq: 20202 SUBSCRIBE
Contact: <sip:608 at 192.168.88.60:5060>
X-Grandstream-PBX: true
Max-Forwards: 70
User-Agent: Grandstream GXP2160 1.0.5.33
Expires: 180
Supported: replaces, path, timer, eventlist
Event: dialog
Accept: application/dialog-info+xml,multipart/related,application/rlmi+xml
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO, REFER,
UPDATE, MESSAGE
Content-Length: 0


I’ve tried send to Kamailio this PUBLISH

PUBLISH sip:*55 at master.rufan.at:5060 SIP/2.0
Via: SIP/2.0/UDP 10.0.20.71:5060;branch=z9hG4bK-6930-1-0
Max-Forwards: 70
To: <sip:*55 at master.rufan.at>
From: <sip:*55 at master.rufan.at:5060>;tag=1
Call-ID: 1-6930 at 127.0.1.1
CSeq: 1 PUBLISH
Contact: <sip:mod_sofia at 127.0.1.1:5060>
Event: presence
Expires: 3600
Content-Type: application/pidf+xml
Content-Length:  486

<?xml version="1.0" encoding="ISO-8859-1"?>
<presence xmlns='urn:ietf:params:xml:ns:pidf'
xmlns:dm='urn:ietf:params:xml:ns:pidf:data-model'
xmlns:rpid='urn:ietf:params:xml:ns:pidf:rpid'
xmlns:c='urn:ietf:params:xml:ns:pidf:cipid' entity='sip:*55 at master.rufan.at
'>
<tuple id='z9hG4bK-6930-1-0'>
<status>
<basic>open</basic>
</status>
</tuple>
<dm:person id='1'>
<rpid:activities>
<rpid:on-the-phone/>
</rpid:activities>
<dm:note>Night</dm:note>
</dm:person>
</presence>

Kamailio answers with 200OK, but after this - no NOTIFY to subscribed
clients.

-- 
Best regards,
Igor
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