Can rapid fire spam phone calls be blocked by the PA, they seem to be similar to a dial of service and they are making it possible for us to make outgoing calls or recieve incoming calls by using all our phone sessions? Is there a way to block them using the PA?
Yes, an SBC is generally setup for VoIP and a PBX would generally be either deployed alongside a gateway or act as its own gateway. Whether or not you have one would be dependent on what you are using as a phone system.
I'm not all that fimiliar with Cube, but I would assume that it would have a similar featureset as an Expressway and CUCM whcih would make this possible.
You might want to verify that whoever setup your equipment has SIP UDP disabled so that toll fraud isn't chewing into your licenses. Look into whether or not Cube can do a CPL rule.
It's 5 years since I have managed a Cisco UCM, but your definatly going to have more success there than tryign anythig on the PA.
But if your on a SIP trunk, then speak to your phone system provider.
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