[Kamailio-Users] Number portability

Alex Balashov abalashov at evaristesys.com
Thu Jun 18 10:14:22 CEST 2009


Paul,

Remember that Kamailio is a SIP proxy.  One call leg in, same call leg 
out.  This is not the same as a B2BUA, which generates a whole new 
logical call leg on the out side.

If your softswitch's signaling agent is like any other out there, it 
will decide that this situation:

    Softswitch --> call leg 1 --> proxy --> still call leg 1 --+
       ^                                                       |
       |                                                       |
       +-------------------------------------------------------+

... is a call loop, and refuse it on the return.

Paul Mancheno H. wrote:

> Hello friends
> 
> I want that a call out of my softswitch go to my Kamailio, there run a query 
> to a database, and return to the softswitch preceded with an index which I 
> will forward the proper operator, the most important thing is that only pass 
> signaling to Kamailio, and only when the call is going to do is send the data 
> packets, and ultimately the data come from softswitch to softswitch.
> 
> Should I make any special configuration for this to happen?
> 
> A lot of thanks.
> 
> 
> 
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-- 
Alex Balashov
Evariste Systems
Web     : http://www.evaristesys.com/
Tel     : (+1) (678) 954-0670
Direct  : (+1) (678) 954-0671



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