Hi Daniel,

I need to access custom database tables (i.e. not default with kamailio) from a lua script (extending kamailio.cfg).

Processing any incoming SIP request starts with a lua function and that in turn call other functions - and each one needs database access for taking routing decision. This seems to be a huge performance issue (connecting/querying db in several functions for a sip invite).

Could you please suggest

Any global scope (loads only once during start-up, but valid for each routing) in kamailio, where the required tables could be cached.
Or any other way to address this.

Thanks in advance.

On Tue, Jun 21, 2011 at 2:21 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:

Hello,

to rewrite the r-uri you can use the function for setting PV value:

sr.pv.sets("$ru", "_here_is_new_uri_");

To add contact headers to reply, you should use:

sr.hdr.append_to_reply("Contact: <_here_is_your_uri_>\r\n");

Cheers,
Daniel

On 6/20/11 3:23 PM, Sharif Tanvir Rahman wrote:
Hello,

We plan to use Kamailio as redirect server. Corresponding contact list is to be fetched by a Lua script from DB.

The problem is about calling the required 'rewriteuri' function:

From lua script. both 'sr.rewriteuri()' and 'sr.modf("rewriteuri", ...)" fails to write the 'contact' field.

I tried an alternative way; pushing the value from lua (e.g. sr.pv.sets("contact", "sip:...")) and got the value in the Kamailio.cfg ($var(contact)). But can't call the rewriteuri function with this variable's value as argument. This seems to be a general problem of calling a function from .cfg with a variable's value as parameter.

Any help much appreciated.

--
Sharif
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-- Daniel-Constantin Mierla -- http://www.asipto.com http://linkedin.com/in/miconda -- http://twitter.com/miconda

--
Sharif Tanvir