Exam 350-801 topic 1 question 6 discussion

Actual exam question from Cisco's 350-801

Question #: 6
Topic #: 1

An incoming off-net call to a user fails. An engineer notices that the off-net call is G.711, but the phone accepts only G.729. Which media resource on a Cisco
Unified Border Element and Cisco Unified Communications Manager must the engineer configure to manage the codec negotiation?

A. transcoder
B. CFB
C. MOH
D. MTP

Show Suggested Answer

Suggested Answer: A 🗳️

by BhaiKyare at Aug. 16, 2021, 4:03 p.m.

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genarouaaan

7 months, 3 weeks ago

Selected Answer: A

A is correct.

upvoted 2 times

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BhaiKyare

1 year, 10 months ago

Why it can't be MTP on the SIP Trunk ?

upvoted 1 times

somebotty

1 year, 9 months ago

Media Termination Points can only handle G.711. They can't handle G.729. An MTP is mostly for providing supplementary services like hold, transfer, etc. They can also allow connection between a SIP device that requires Early offer and one that requires delayed offer. The MTP transcoding capability is limited to a to u law and packet size. From Cisco.com "The MTP accepts two full duplex G.711 Coder-Decoder (CODEC) stream connections. MTPs bridge the media streams between two connections. The streaming data received from the input stream on one connection is passed to the output stream on the other connection, and vice versa. In addition, the MTP trancodes A-law to Mu-law (and vice versa) and adjusts packet sizes as required by the two connections." https://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/3_1_2/ccmsys/a05mtp.html

upvoted 6 times

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