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Refer to the exhibit.

Refer to the exhibit. An engineer is trying to set up a new deployment using the SIP provider with TCP for signaling. After troubleshooting, the customer notices that the matching incoming dial peer and outgoing dial peer did not generate the INVITE to the SIP provider. Why is the call failing?

A.

The ITSP is sending FIN.

B.

The ITSP is not sending the ACK.

C.

The ITSP is sending CLOSE state.

D.

The ITSP is not answering the SYN.

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