[cisco-voip] Can a CUBE be used to connect CUCM and Asterisk to a SIP Trunk

[Nick Matthews]

Realistically you could probably trunk them together without CUBE. CUCM has
a lot more capability in altering the inbound/outbound SIP settings that
CUBE was used for previously. CUBE would make it potentially easier and
still makes the media exchange simpler, but my guess is with Asterisk for
50 phones this design aspect isn't significant.

I haven't seen any guides for either CUCM or CUBE connectivity to Asterisk,
but they're probably out there on the interwebs somewhere.

-nick


On Sun, Dec 2, 2012 at 10:33 AM, Matthew Saskin <msaskin at gmail.com> wrote:

> This would not be a problem at all.  The short answer is you'd end up
> having dial peers on the CUBE that route (via destination pattern, etc.)
> specific calls/DID's to the asterisk IP address and specific calls/DID's to
> the be6k address.
>
> -matthew
>
> Matthew Saskin
> msaskin at gmail.com
> 203-253-9571
>
>
>
> On Sun, Dec 2, 2012 at 12:40 AM, Dieter Jansen <justtemprament at gmail.com>wrote:
>
>> Hi All,
>>
>> We are looking to replace an existing Asterisk PBX with about 40 SIP
>> handsets with a CUCM UC solution (BE6K) with about 50 new CP-8945s.
>>
>> The current installation uses a SIP trunk and we plan to keep using this
>> to connect to the PSTN.  We have a 100 DID block for our incoming calls.
>>
>> As we have comparatively little experience with the Cisco solution we're
>> looking at a soft introduction and will probably have both sets of handsets
>> in place in parallel for a while.
>>
>> I've got all the edge switches and VLANing working - independent data,
>> voice and legacy voice VLANs/subnets and all required routing between.
>>  We're at the point where test phones can place video calls to each other
>> so we now need to get routing and PSTN access happening
>>
>> Originally I was thinking I'd set up a CUCM-behind-Asterisk
>> or Asterisk behind-CUCM situation whilst testing but on reading the Cisco
>> documents and books I've noted the suggested use of a CUBE SBC.  As we have
>> a spare router that can probably do CUBE I was wondering if I should set
>> that up to register with our VSP.
>>
>> In the first instance I'd get the Asterisk box to pass calls to the CUBE
>> and have the CUBE forward all incoming calls to the Asterisk.
>>
>> What I'm hoping is that I could then also have the CUCM pass calls to the
>> same CUBE and route a subset of the inward DIDs to the CUCM whilst testing
>> - allowing me to get all the setup sorted whilst easily flipping incoming
>> calls to specific DID between Asterisk and CUCM.
>>
>> I've not seen an example of the CUBE being used in this way - is it
>> possible?
>>
>> Regards, JustTemprament.
>>
>>
>>
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>>
>
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