Refer to the exhibit. An administrator is attempting to resolve a DTMF issue to a specific IVR and has supplied logs from the most recent issue. What is the cause and solution of the issue?

This option incorrectly states that the local endpoint supports RFC2833 and the IVR supports only KPML; the provided correct answer indicates the opposite scenario (endpoint doesn't support RFC2833, IVR does).

If the local endpoint does not support RFC2833 for DTMF signaling and the IVR only supports RFC2833, a mismatch occurs, preventing DTMF tones from being correctly interpreted. In such a scenario, a Media Termination Point (MTP) can be deployed to provide the necessary interworking. The MTP can receive the DTMF tones in the format supported by the endpoint (e.g., in-band audio tones) and convert them to RFC2833-compliant Named Telephone Events for the IVR, facilitating successful DTMF communication.

This option is a duplicate of B, but without the full solution provided, making it less complete.

A transcoder is typically used for converting audio codecs (e.g., G.711 to G.729), not primarily for converting DTMF relay methods like RFC2833 to KPML; an MTP is the direct solution for handling DTMF relay mismatches.