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Welcome to Cisco Support Community. We would love to have your feedback.

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Anyone use CUBE for SIP trunking? Have a read.

voice service voip

     sip

          silent discard-untrusted

Silent discard was added in 15.3.3M to make the router not send 403 errors to untrusted entities...which exposes the router (validates that it's there essentially).

Might want to add that when upgrading to that version.

Tracy

1 REPLY

Anyone use CUBE for SIP trunking? Have a read.

Thanks for sharing

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