Exam 350-801 topic 1 question 371 discussion

Actual exam question from Cisco's 350-801

Question #: 371
Topic #: 1

An engineer must configure DTMF relay on a Cisco Unified Border Element by using RFC2833 as the preferred relay mechanism and KPML as the next preferred relay mechanism. The engineer logs in to the CUBE and enters the dial-peer configuration level. Which command should be run at the dial-peer configuration level?

A. dtmf-relay sip-kpml rtp-nte
B. dtmf-relay rtp-inband sip-kpml
C. dtmf-relay sip-kpml rtp-inband
D. dtmf-relay rtp-nte sip-kpml

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Suggested Answer: D 🗳️

by b3532e4 at Sept. 20, 2024, 2:58 p.m.

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b3532e4

7 months, 3 weeks ago

The correct answer is D. dtmf-relay rtp-nte sip-kpml. In this command: rtp-nte refers to RFC2833 (also known as RTP-NTE or RTP Named Telephone Events), which is used for out-of-band DTMF relay over RTP. sip-kpml refers to KPML (Key Press Markup Language), which is an alternative DTMF relay mechanism used in SIP signaling. The order of the command specifies the preferred DTMF relay mechanisms, with RFC2833 (RTP-NTE) being the first preferred method and KPML as the next preferred. Thus, this configuration aligns with the requirement to prioritize RFC2833 and then KPML.

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b3532e4

8 months ago

D. dtmf-relay rtp-nte sip-kpml

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