[SR-Users] allow_trusted() use.

Good afternoon, I'm trying to configure permissions module to allow calls from an IP address. I've the module loaded, the entry on the data base table trusted. But according to the examples I've seen on the list and other sources, the call to allow_trusted() has to be placed just before the INVITE authorization section like: if (is_from_local()){ if(!allow_trusted()){ ...authorization... In my scenario allow_tusted() is never reached and thus Kamailo allows the call regardless the table trusted is populated with the the allowed proxy IP or not. The INVITEs that I want to allow come from another proxy and then I understand is_from_local() is always evaluated false for those messages. And allow_trusted isn't reached. Where on the script should the condition to allow only the calls from the external proxy IP be placed? Thanks in advance. Vicente.