[OpenSIPS-Users] Stop INVITE from uknown source

[Bogdan-Andrei Iancu]

Hi Satish,

The scripting you use is authenticating only INVITEs (actually all 
requests) coming from your own users (based on the SIP domain in From 
header). IF the caller is not a local user, the call is accepted only if 
callee is a local user (based on the SIP domain in the RURI).

If you simply want to decline any calls from non-local callers, on the 
"else" branch of the "if(is_from_loca())" reject the call:
     send_reply("403","Forbidden");
     exit;

Best regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 13.02.2015 17:07, Satish Patel wrote:
> I have question about how to stop INVITE coming from unknown source or 
> not subscribed user.
>
> I have opensips front end proxy and Freeswitch PSTN
>
> But recently i have seeing some calls coming from unknown source and 
> method is INVITE so it is sending direct INVITE to opensips and 
> opensips forwarding them to Freeswitch, How do i tell opensip if 
> INVITE from non-registered user then drop it.
>
> As you see in Freeswitch section, if you see INVITE forward it to 
> Freeswitch, How do i check INVITE is authenticated or not?
>
> This is what i have in cfg.
>
> ....
> ....
>  if (is_from_local())
>                 {
>
>                         # authenticate if from local subscriber
>                         # authenticate all initial non-REGISTER 
> request that pretend to be
>                         # generated by local subscriber (domain from 
> FROM URI is local)
>                         if (!check_source_address("2")) {
>                         if (!proxy_authorize("", "subscriber")) {
>                                 proxy_challenge("", "0");
>                                 exit;
>                         }
>                         consume_credentials();
>                         # caller authenticated
>                         }
>                 } else {
>                         # if caller is not local, then called number 
> must be local
>
>                         if (!is_uri_host_local()) {
>                                 send_reply("403","Rely forbidden");
>                                 exit;
>                         }
>                 }
>
>         }
>
>  # To FreeSWITCH
>         if (is_method("INVITE")) {
>         if  ( uri=~"^sip:[1-9][0-9]{10,15}@.*") {
>                 xlog("Sending call to   ===> Freeswitch\n");
>                 route("to_dispatcher");
>                 exit;
>                 };
>         }
>
>
>
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> Users at lists.opensips.org
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