[cisco-voip] Expressway Design for new startup

Ki Wi kiwi.voice at gmail.com
Mon Jun 6 02:30:05 EDT 2016


Hi James,
It definitely make more sense. However, if this is to go to spark, I will
need similar equipment upfront as well.

First create a UCM cluster.
Establish hybrid spark connectivity (this requires additional expressway C
instance for host connector stuff on top of expressway C&E pair)

Since I have 3 locations with voice gateways, it make sense to have 3
expressway (C&E) at least? If not, I can imagine that when I'm in US
calling someone US, the spark will connect to the UCM cluster located in
SG via that only expressway located in SG. The voice quality will be very
bad due to latency. The PSTN option directly via spark is very limited
currently.

The setup is more or less the same eventually. Most likely we might be able
to save on CUWL license cost if those roaming users doesn't need a phone
profile in CUCM?

On Mon, Jun 6, 2016 at 2:16 PM, James Buchanan <james.buchanan2 at gmail.com>
wrote:

> Hello,
>
> I wonder if a cloud-based solution such as Spark wouldn't make more sense
> than implementing an on-premise system.
>
> James
>
> On Mon, Jun 6, 2016 at 2:14 AM, Ki Wi <kiwi.voice at gmail.com> wrote:
>
>> Hi Group,
>> I have this customer requirement where they have 3 locations (Singapore,
>> US and UK) . Majority of their users will be on the move (around the
>> world). Users have to connect to the phone system via Internet.
>>
>> The intention is to have the UCM cluster in Singapore and have the
>> expressway C/E pair in all the 3 locations mentioned. With the help of
>> GeoDNS solution, the jabber shall be able to look for the nearest
>> expressway to connect to. Optimize resource assignment (ie.
>> CFB/xcoder) nearest to them shall be taken care of by configuring device
>> mobility related profiles.
>>
>> Will this work? Since they have small amount of users, having multiple
>> clusters might not make sense and the users will be roaming across cluster
>> often + I don't see any benefits by doing so?
>>
>>
>> --
>> Regards,
>> Ki Wi
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>


-- 
Regards,
Ki Wi
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