We have some parameters to disable some commonly abused features in a carrier env.

in the sofia profile

set manage-presence to false

If you are not providing registration or client transfers disable them completely
set disable-transfer to true
set disable-register to true


And register for ClueCon where someone will probably give a talk on VoIP security!



2010/6/15 Joćo Mesquita <jmesquita@freeswitch.org>
I believe it is nice to say as well that most small transit carriers see the bypass media as a commercial threat since they will disclose in part of the packet to which IP address they are actually terminating the call to.

I've been through this with lots of carriers that do nothing but LCR dips and transit.

JM



On Tue, Jun 15, 2010 at 6:11 PM, Brian West <brian@freeswitch.org> wrote:
We have bypass media.

/b

On Jun 15, 2010, at 4:01 PM, Code Ghar wrote:

> Let me put it this way: of more than 40 carriers I work with, only six have some sort of problem if they see re-invite. Some of the bigger names most people recognize all support re-invite (and some even prefer it): AT&T, Qwest, and Verizon, among others.
>
> Let me clarify when I say re-invite. We are basically talking about keeping yourself in the signaling path but once the call is answered to invite your ingress and egress carriers to use each others' media IP instead of your media IP. This way you don't have to deal with media once call is connected.




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