Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 127

A company's employees have been complaining that they have been unable to select options on the internal IVR of the help desk. IT support has been given
Cisco UCM traces and below is the snippet of the SDP of the INVITE packet. m=audio 25268 RTP/AVP 18 101 a=rtpmap:0 PCMU/8000 a=rtpmap:18 G729/8000 a=ptime:20 a=fmtp:18 annexb=no a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15
How is this issue resolved?

Answer options

• A. Configure DTMF for KPML.
• B. Configure CODEC for G.729.
• C. Configure DTMF for RFC 2833.
• D. Configure CODEC for G.722.

Correct answer: A

Explanation

The correct answer is A because configuring DTMF for KPML allows proper transmission of dual-tone multi-frequency signals, which is essential for IVR navigation. Options B and D focus on codec configurations, which are not related to the DTMF signaling issue at hand. Option C, while related to DTMF, uses RFC 2833, which may not be suitable given the context provided.