[SR-Users] presence_dialoginfo- first NOTIFY - force_dummy_dialog

[evoip at ukr.net]

||Hello,
we use Kamailio 4.2 with Presence_DIALOGINFO module for BLF 
notifications (blinking lamps on phone panel).

Since version 4.1 Kamailio has a new module parametr " 
modparam("presence_dialoginfo", "force_dummy_dialog", 1)" - this option 
generate first NOTIFY to Subscribed phone (without PUBLISH message) and 
it's lamps became GREEN ( <state>terminated</state>).

Without this module parametr the first NOTIFY won't be sent to phone and 
lamps will stay turned off until first PUBLISH will be handled by 
presence server.

The first NOTIFY sip message with xml body look like this:


NOTIFY sip:1005 at 22.22.22.22:1120 SIP/2.0.
To: <sip:1005 at 11.11.11.11>;tag=867246696.
From: <sip:9095 at 11.11.11.11>;tag=495949c4c25d687c77ca707bd10a0818-5171.
CSeq: 2 NOTIFY.
Call-ID: 662126467-5060-6 at BJC.BGI.E.CDD.
Route: <sip:10.60.1.3;r2=on;lr=on>, <sip:11.11.11.11;r2=on;lr=on>.
Content-Length: 272.
User-Agent: kamailio (4.2.3 (x86_64/linux)).
Max-Forwards: 70.
Event: dialog.
Subscription-State: active;expires=600.
Content-Type: application/dialog-info+xml.
.
<?xml version="1.0"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="1" ух 
state="full" entity="sip:9095 at 10.60.1.3">
      <dialog  direction="recipient">
         <state>terminated</state>
     </dialog>
</dialog-info>

Especially pay attention on XML body.


But for some SIP phones this xml body with state = terminated is not 
enough to turn the BLF lamp on. (for example Grandstream phones).
It requires one more or two more fields: "dialog id", "call-id".

<?xml version="1.0"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" 
version="28"          state="full" entity="sip:9093 at 10.60.1.3">
   <dialog id="830b4fd4-c75d-1233-ca9f-0050569560f4" 
call-id="830b4fd4-c75d-1233-ca9f-0050569560f4" direction="recipient">
     <state>terminated</state>
   </dialog>
</dialog-info>



The question is how to modify this first NOTIFY XML body message to add 
"dialog id" and "call-id" to </dialog>.
For example latest Kamailio Kazoo fixed that already. :)





Kind Regards
Ewgeny











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