Re: [OpenSIPStack] [OpenSBC] Two (2) OSBC on net segment

[<sa...@ER...>]

Hi Joegen

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Here is a re-cap Re: [OpenSBC] Peering Edge or Access Edge SBC's
Warren,

Yes, you are correct in concluding that you would need two OSBC
instances in the scenario you laid out.  The instance that you use for
SIP trunking to face your ITSP should not be the same instance that you
are using for NAT traversal of  SIP UAs using upper registration to SIPX.

In fact, it may even be necessary for you to have 3 instances of OSBC if
you need to support DID providers that do not comply with SIP REFER.
As you may know, calls transferred from the SIPX auto-attendant are
referred to the relevant UA.  Since many ITSP do not honor the REFER
message, we have found it necessary to run a dedicated OSBC instance as
a media anchor to shield the ITSP from the referred calls.

HTH
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In the above scenario ITSB Peering OSBC(po) <==> sipX <==> Access OSBC(ao).
You can think of po as a pipe/bridge/trunk or two hardwired SBC's via the
Internet.

Without the po active on network I am able to register phones to the ao and
accept phone calls but an not able to make phone calls.  In this scenario
calls to the ao are sent back to the sipX.  The solution is to add a second
OSBC used as Peering Edge.  So now the trick is to setup OSBC as a Peering
edge SBC. In my simplistic thinking because the ITSP on the Peering Edge is
both looking for a registered phone on inbound calls and looking for From;
DID@PeeringEdge to allow sip passage outbound but on the Access side
outbound look like this From DID@AccessEdge .

SipFoundary list is also tackeling this issue but is un-aware that a second
or a third OSBC may be required.  If what HTH said is true how do we bridge
the OSBC Peering and Access Edges

Warren Kreckler


----- Original Message ----- 
From: "Joegen E. Baclor" <joe...@gm...>
To: <ope...@li...>
Sent: Saturday, December 29, 2007 7:00 AM
Subject: Re: [OpenSIPStack] [OpenSBC] Two (2) OSBC on net segment


> Hi Warren,
>
> If you mean mirroring of registrations via none signaling means then the
> answer is no.  Upper registration may let the registration pass but I
> seriously doubt this is what you mean.
>
> Joegen
>
> sales@ER wrote:
> > Hi
> >
> > Is it possible to pass phone registration from one OSBC through too
another
> > OSBC.
> >
> > I am experimenting with two OSBC's on the same network segment with an
> > sipXecs in between.  One setup as Peering edge and the other as Access
edge.
> >
> > Warren Kreckler
> >
> >
> >
>
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