[Freeswitch-users] Caller Authentication
dave at 3c.co.uk
Sun Aug 30 09:25:17 PDT 2009
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.
> 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?
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
David Knell, Director, 3C Limited
T: +44 20 3298 2000
E: dave at 3c.co.uk
More information about the FreeSWITCH-users