How do you trap calls on SIP trunks - TDM is easy to do and provide from the carrier - What about SIP threats - like bomb threats, harrassing calls
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How do you trap calls on SIP trunks - TDM is easy to do and provide from the carrier - What about SIP threats - like bomb threats, harrassing calls
You need to get access to the network traffic to capture the SIP messages. For SIP threats, some of them are handled automatically by the SBC, others need to be analyzed to understand if they are troublesome and can be blocked out or dropped from the system.

» Doesn't this assume fraudulent calls are NOT being made off of established "legitimate" carrier networks. A valid certificate doesn't mean it's not a fraud call, does it? I may be missing something here.
» How about calls originated outside NorthAmerica? (these countries won´t follow this STIR/SHAKEN protocol) Are these calls all be treated as "possible spoofed CLI" calls?
» Can I do the settings so that doesn’t send the `tbNp1State` SNMP trap message or Can I disable any SNMP trap notification from SNMP?
» Based on the callflow diagrams, all SIP carriers between Originating carrier and Terminating carrier must support TCP SIP and allow the extended headers to be forwarded, correct?
» Are Service Provider still having issues with Codec Mismatch? i.e. Company A is using G.711 calls Company B using G.729 - Company B only accept G.729 calls only, are Service Provider have capability to match the codecs?
» How about calls originated outside NorthAmerica? (these countries won´t follow this STIR/SHAKEN protocol) Are these calls all be treated as "possible spoofed CLI" calls?
» Can I do the settings so that doesn’t send the `tbNp1State` SNMP trap message or Can I disable any SNMP trap notification from SNMP?
» Based on the callflow diagrams, all SIP carriers between Originating carrier and Terminating carrier must support TCP SIP and allow the extended headers to be forwarded, correct?
» Are Service Provider still having issues with Codec Mismatch? i.e. Company A is using G.711 calls Company B using G.729 - Company B only accept G.729 calls only, are Service Provider have capability to match the codecs?
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