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<a href="https://www.google.com/#q=ios+toll+fraud+h.323" class="">https://www.google.com/#q=ios+toll+fraud+h.323</a>
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<div class="">-wes</div>
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<div class="">On Sep 11, 2016, at 9:37 AM, David Zhars <<a href="mailto:dzhars@gmail.com" class="">dzhars@gmail.com</a>> wrote:</div>
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<div dir="ltr" class="">So yesterday I was alerted by our landline company that some of our phone numbers that come in POTS on an H323 router, we being used for phone fraud. I am wondering how this happens with an H323 router (I am familiar with someone hacking
Unity and setting up actions to route to Jamaica once someone leaves a voicemail or similar).
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<div class="">The odd part is that these numbers are almost NEVER used for calling out, unless the user presses a 7 for an outbound line (versus an 8 which puts the call out on ISDN).</div>
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<div class="">I found a link on how to disable OffNet calling in UCM, but should I instead look at securing the H323 router? Or does the call blocking rule need to be done in UCM?</div>
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<div class="">Thanks for any enlightenment you can provide.</div>
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<div class="">PS- Client is in USA, call fraud to Jamaica which does not require a country code, so harder to block.</div>
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