Hi Roberto!
The best location of applying such a "policy" function depends on several things:
First, you need to have all the data you are requiring. E.g. if you want to check if a certain user is allowed to call a certain phone number you usually need to do first: - authenticate the user - normalize destination (e.g. bring phone number into E164 format or apply alias lookups).
Then, before proceeding any further, you might check the policy using a SQL query. Be sure to SQL escape the date you provide for the SQL lookup to prevent SQL injection (see "transfomations").
In above case, the SQL query should be before calling lookup().
In case of presence functions you should apply policies before handling the presence requests.
regards klaus
Am 01.07.2011 19:23, schrieb Roberto Fichera:
Hi All in the list,
I'm new to Kamailio but I'm actually able to quickly setup a server, including also the SIP presence, looking at the example I found at
http://kb.asipto.com/kamailio:presence:k31-made-simple
which explain very well how to do it. I also made some changes in the final setup and everything seems working well, I can have audio/video/chat session including the presence status of any user.
Now I would like to improve my testing setup so that for each call request Kamailio receive, I would like to perform some SQL lookup for deciding if the conversation might be established or not. About the SQL lookup I read about the SQLOPS module, it seems really easy to use, but I don't know where to put such check before the INVITE.
Could someone give me some hints?
P.S: Indeed, I need to read some good documentation about how to code a Kamailio config file. Any URL to suggest?
Thanks in advance, Roberto Fichera.
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