[Serusers] PA module SER 2_0_0 - no xcap query with auth parameter set to xcap

[tzieleniewski]

Hi, 

I am trying to use the xcap authorization for PA during the SUBSCRITPION message servicing.

I have the following code which work fine when auth parameter is set to 'none':
if(lookup_user("$tu.uid", "@ruri"))
{
  if (!t_newtran())
    sl_reply_error();
    drop;
  }
 (handle_subscription("registrar"))
...
}
but when I switch to auth 'xcap' I cant see any query send to XCAP server simulated on apache according to the presence handbook.

Please point me what do I miss.
Thanks
Cheers 
Tomasz