[cisco-voip] Call flow for device registered to Hybrid Cloud via local PSTN

[Jonathan Charles]

OK, I know it is weird to respond to your own email... but...

The blocking of toll fraud is via MTLS on port 5062 with Cisco... we create
an MTLS session first before accepting the invite.


Jonathan

On Wed, May 15, 2019 at 4:20 PM Jonathan Charles <jonvoip at gmail.com> wrote:

> Enabling Cisco hybrid call and routing calls to the PSTN using local
> gateway (via Expressway C/E pair).
>
> What search rules do we need on the E and C?
>
> How do we prevent toll fraud if we have E.164 patterns inbound on our
> Expressways?
>
> Am I being paranoid?
>
>
> Jonathan
>
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