[cisco-voip] SIP Trunking Questions

[Lee]

I would use CUBE as the go between CCM & SIP Provider.  It has more options
than CCM has.

On Tue, Dec 7, 2010 at 6:17 AM, Nick <csvoip at googlemail.com> wrote:

> Hi All
>
> I have a couple of questions regarding implementing a SIP trunk solution,
> this will be using a private MPLS network SIP trunking based service where
> the session border controllers are within the SIP trunking platform,
> therefore the CUCM SIP trunks point to the SBC's directly.
>
> 1) The SIP platform needs to point each SIP trunk to a specific IP address
> within the IP PBX, so if the platform is confgured so that specific channels
> within the trunk are reserved for say inbound or outbound calls then these
> will be configured as another SIP trunk and need to point to a different IP
> address. The cluster will only have two servers so if we have 2 trunks we
> would be ok, but if we need more than 2 trunks then how can this be
> configured to point to different IP addresses and then route to the CUCM, if
> this a function of a CUBE or is there any other product that could do this?
>
> 2) I understand the product can use either G.729 or G.711, however if say
> for instance another customer is using the same platform with a different
> codec and a call is placed between these two companies,  the SIP platform
> cannot negotiate the correct codec, is it possible that the CUCM can
> negotiate the correct codec and the complete the call?
>
> Regards
>
>
> Nick
>
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