[OpenSIPS-Users] use case for settlement free peering

[Brett Nemeroff]

Sure. Opensips is a great platform for this. Sounds like a pretty easy
setup too. I would avoid the full mesh like the plague. :) In 5 years,
you'll wonder what you were thinking. :)
-Brett

On Mon, Oct 19, 2009 at 1:16 PM, A G <28rhills at gmail.com> wrote:
> Greetings:
>
> I'm looking for advice on a project/proof of concept I'm working on.
> I would like to create a settlement-free peering fabric for voice
> traffic between and among some peer institutions in my area.  Because
> this is more of a side-project for cost cutting measure, I'm primarily
> looking at open source software, though commercial product
> recommendations would be helpful as well.
>
> The organizations I would like to connect have their own PBXs with
> large blocks of numbers (whole NPA-NXXs), with no number portability
> in or out.  I imagine both at the individual PBXs and peering fabric,
> the number routing would be static.  To put another way, we would
> manually configure which connections the block of telephone numbers is
> reachable at.
>
> Here is the required ASCII art diagram   :)
>
>
>                    +-------+
>                    |  PBX  |
>                    +-------+
>                        |
>                    +-------+
>                    |  SBC  |
>                    +-------+
>                        |
>                        |
> +---+  +---+         .--------.            +---+  +---+
> | P |  | S |        /          \           | S |  | P |
> | B |--| B |------ (     ????   )----------| B |--| B |
> | X |  | C |        \          /           | C |  | X |
> +---+  +---+        `---------'            +---+  +---+
>                        |
>                        |
>                    +-------+
>                    |  SBC  |
>                    +-------+
>                        |
>                    +-------+
>                    |  PBX  |
>                    +-------+
>
>
>
>
> For scalability reasons, a full mesh of connections between and among
> the SBCs is not an attractive option.
>
> Here's what I think I need:
> Basic SIP routing
> TCP, TLS, and UDP support
>
> What would be nice to have:
> IPv6
> CDR
>
> What is probably not needed:
> User agent client registration, presence, IM, voice mail
>
> I see there are several different open source voice projects.
> Do you think this is an appropriate use for OpenSIPS?
> I'm seeking comments on what you would use for this situation.
> Are there any existing  projects along these lines?
> Is there one project that is better than another for this application?
>
> Thank you
>
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