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<div class="moz-cite-prefix">On 06/02/2014 05:45 AM, Gary Nieboer
wrote:<br>
</div>
<blockquote
cite="mid:CAMXUi2RdpG6QLdHMw5xMNZ_ZOUgM_mLbz+Va=-HRJEKqWNj2dw@mail.gmail.com"
type="cite">
<div dir="ltr">Hello,
<div><br>
</div>
<div>We are testing and using SPCE to connect our Termination
and Origination Carriers to multiple IP/PBX systems including
FreePBX, NEC, Avaya, Cisco, Shoretel, etc..</div>
<div><br>
</div>
<div>So far, most items are working very well. Although we
only allow traffic from known IP addresses to access the SPCE
servers, and we "trust" all of the Client PBX systems, we are
concerned that one of our carriers could send us a call, and
if the client PBX doesn't accept the Invite, the SPCE will
send the call out our default route to another carrier, which
will then cause a loop.</div>
<div><br>
</div>
<div>Carrier A is inbound, Carrier B is outbound, and our Client
PBX systems are used for both inbound and outbound.</div>
<div><br>
We are not adding any "subscribers" on these servers.</div>
<div><br>
</div>
<div>Is there a way to allow only traffic between certain peers
in certain directions? We would also prefer to send a 503
to Carrier A if we don't have a route to the Client PBX
systems.<br>
</div>
<div><br>
</div>
<div>Thanks in advance for any assistance or recommendations.</div>
<div><br>
-Gary</div>
</div>
<br>
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</pre>
</blockquote>
<br>
<tt>Hi, <br>
if you don't want to use a peering as outbound peer, do not
specify any peering rules then.<br>
In that way calls can't go out via that peer. Only inbound calls
are allowed.<br>
<br>
Daniel<br>
<br>
</tt>
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