Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 454

A Cisco voice gateway is configured to use a sip-kpml DTMF relay in global settings. A new SIP dial peer is configured for a third-party application that only supports an in-band DTMF relay. Which command must an engineer run on the dial peer?

Answer options

• A. dtmf-relay sip-info
• B. no dtmf-relay sip-kpml
• C. dtmf-relay sip-notify
• D. dtmf-relay rtp-nte

Correct answer: D

Explanation

The correct command is 'dtmf-relay rtp-nte' because it configures the dial peer to use in-band DTMF relay, which is necessary for the third-party application. The other options either do not configure in-band DTMF or are meant for different relay methods that are incompatible with this requirement.