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

Lelio Fulgenzi lelio at uoguelph.ca
Wed May 15 18:42:27 EDT 2019


Very good question. From what I understand, there’s a special traversal link built and it’s all “built-in” and uses the CSS of the remote destination or something like that.

I’ve read absolutely zero docs about this. This is all based on a quick convo I had. I had the same worries and if I recall correctly, my worries were somewhat alleviated.

However, that being said, there is only one template in control hub, so if your user needs a different setup on their remote destination (or something like that) you need to go make a manual change.

It’s sorta like how there’s only one licensing template in control hub for new users. We’re gonna struggle with that. We might have to engage (professional) services which make uses of APIs to assign different services for different users in webex. But I digress.

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Lelio Fulgenzi, B.A. | Senior Analyst
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On May 15, 2019, at 5:20 PM, Jonathan Charles <jonvoip at gmail.com<mailto: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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