[cisco-voip] Integrateing bunch of TDMs with VGs

[Matthew Saskin]

This is the perfect place for a gatekeeper.  Place a gateway at each
location with appropriate trunks (PRI, BRI, etc.) to each PBX.  Dial peers
on these gateways to route calls to a centralized gatekeeper, and voila.
I'm drastically oversimplifying, but the gatekeeper will give you a single
location for centralized call routing amongst the gateways.

Matthew Saskin
msaskin at gmail.com
203-253-9571



On Mon, Sep 6, 2010 at 4:18 PM, Ratko Dodevski <rade239 at gmail.com> wrote:

> Hi all, I need some help (obviously) :)))
> I have a customer with a bunch of TDM PBXs on different locations and
> now wants to interconnect all of them into one big voice cloud :)
> My question is, what is the best way to do this? I was thinking of VG
> on each location that would use 2xBRI ports to connect with the TDM
> PBX and a eth0 interface would be connected to a WAN link. I'm not
> sure how can I do this exactly :( they are going to use leased lines
> to the central location...So i guess that every VG would have to have
> a configuration just as a normal VG with dial peer directing to the
> central location, where the central VG would have the dial peers for
> every location and would route the calls based on dial peers. Do I
> need some call manager express in place? If I can manage that all the
> locations can connect directly I guess that I can make a dial peers on
> each router that would route the calls to the appropriate VG that has
> that numbering plan.
> Any ideas or maybe even some on site experience???
>
> Thanks
>
> --
> Ratko
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