I'm looking for input from other voice providers: We have an off-net number that periodically floods our network with inbound calls. When this happens our NS ( Broadsoft) often reaches or exceeds the number of available licenses. The end result is that new call requests fail until the call volume decreases. This usually last for 5-10 seconds. We have a cluster of AcmePacket SBCs in front of Broadworks. Does anyone know if it is possible to limit the calls per second on a dynamic originating number? I say this as the originating caller might be 555-555-1111 for 10 minutes, then another flood of calls originates from 444-444-2222 a few hours later. We believe these to be from the same caller due to the IVR message presented. If it is possible would the AcmePacket SBC perform this as an HMR in software, or would the SBC hardware handle this? If the SBC cannot do this, is it possible to perform some sort of dynamic rate limiting on a Broadsoft NS and send a failure response code w/a reason code after a metric is breached? Any other suggestions would be great. The last question involves legal implication of blocking a number. Assume that we blocked all calls from 555-555-1111 at our SBC. Two weeks from now Customer A opens a trouble ticket that their customer cannot call them. Of course the company's main line happens to be 555-555-1111. Is there any FCC rule or regulation that would limit this. I'm trying to find something in Title 47 of the Code of Federal Regulations. Thanks! Keith