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

Wed May 15 19:31:21 EDT 2019

It's only a matter of time that the SCCP phones will not function with the
latest features.  I realize that the 79x5's just went EOL a couple of years
ago, but we've had SIP only phones for at least 8 years now.

On Wed, May 15, 2019 at 6:22 PM Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

> Whoa.
>
> ————————
> Unified CM Device Requirements
>
> Hybrid Call Service is supported only with Cisco SIP phones and Cisco
> Jabber clients that are registered to Unified CM.
>
> *SCCP phones may encounter problems due to the 48-character limitation on
> the destination address. *
>
> ————————
>
> *-sent from mobile device-*
>
>
> *Lelio Fulgenzi, B.A.* | Senior Analyst
>
> Computing and Communications Services | University of Guelph
>
> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON |
> N1G 2W1
>
> 519-824-4120 Ext. 56354 <519-824-4120;56354> | lelio at uoguelph.ca
>
>
>
> www.uoguelph.ca/ccs | @UofGCCS on Instagram, Twitter and Facebook
>
>
>
> [image: University of Guelph Cornerstone with Improve Life tagline]
>
> On May 15, 2019, at 7:16 PM, Ryan Huff <ryanhuff at outlook.com> wrote:
>
> You’ll need a specific Webex DNS zone and the traversal trunk really just
> needs to support pre-loaded route headers and SIP parameter preservation
> (those are the most significant differences over the traversal / neighbor
> zone you might have setup for B2B).
>
> It’s a simple enough configuration, but there are a few more moving parts
> than what the marketing may lead one to believe. Here is the configuration
> documentation:
> https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/spark/hybridservices/callservices/cmgt_b_ciscospark-hybrid-call-service-config-guide.html
>
> Oh and don’t forget to enable MTLS on the edge and also be aware the
> ControlHub now requires CCM 11.5.1SU3 or better (it detects CCM version via
> call connector on Exp-C). It wouldn’t allow you to enable hybrid calling on
> cloud registered devices otherwise.
>
> You can technically still get away using Expressway 8.11.4, but that’ll
> soon be a deprecated version for hybrid calling (you’ll get an alarm about
> it), so might as well go to 12.5.2 and be done with it.
>
> BTW, if you try to upgrade an 8.x Expressway to 12.5.x, you will interact
> with GLO for the 12.x release key (can’t do it from the self service portal
> because the existing 8.x virtual license is already associated to a PAK and
> GLO has to invalidate that relationship first, then hash your new keys to
> 12.5.x).
>
> Good Luck!
>
> - Ryan
>
> On May 15, 2019, at 18:42, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:
>
>
> 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.
>
> *-sent from mobile device-*
>
>
> *Lelio Fulgenzi, B.A.* | Senior Analyst
>
> Computing and Communications Services | University of Guelph
>
> Room 037 Animal Science & Nutrition Bldg | 50 Stone Rd E | Guelph, ON |
> N1G 2W1
>
> 519-824-4120 Ext. 56354 <519-824-4120;56354> | lelio at uoguelph.ca
>
>
>
> www.uoguelph.ca/ccs
> <https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.uoguelph.ca%2Fccs&data=02%7C01%7C%7C5b817b962f3e419f017508d6d986a8fe%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636935569711612281&sdata=C%2BV4UMQtv6O8a3zQaVlcrhQL3TG2J06nNShR0ZEQfQ0%3D&reserved=0> |
> @UofGCCS on Instagram, Twitter and Facebook
>
>
>
> [image: University of Guelph Cornerstone with Improve Life tagline]
>
> On May 15, 2019, at 5:20 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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