Hi Max, I think that the answer is generally no - for example, I'm trivially easily able to place a call to my GSM phone with any CLI that I choose. If you can work around that, then consider the case where I divert my GSM phone to you - the call to you will come from the GSM network, but I can still set an arbitrary CLI. Cheers -- Dave
Guys,
This question might be a bit off-topic, so please bear with me as i could hardly find a better place to solicit some help. I suspect caller authentication can be challenging in the broader context of VoIP/SIP. Now, if we restrict the set of calls to those coming from the GSM network, is there a way to tell if the Caller Id is coming from the right source? It doesn't need to be a bulletproofed solution. For instance, if i can already say that a given call is certainly coming from a GSM network (and that the call metadata weren't tampered with), i could maybe rely on the GSM authentication mechanism.
Any idea? Max.
_______________________________________________ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org -- David Knell, Director, 3C Limited T: +44 20 3298 2000 E: dave@3c.co.uk W: http://www.3c.co.uk