It should be D "dtmf-relay sip-kpml". UCCX only supports out of band DTMF.
Here is a link about how somebody resolved it. https://community.cisco.com/t5/contact-center/dtmf-not-working-with-uccx/td-p/2317592
I agree the correct answer should be D, also see best practices for some background info
https://www.cisco.com/c/dam/en/us/td/docs/ios-xml/ios/voice/cube_uccx/cube_uccx_interop_bestprac_guide.pdf
C. and D. are correct both.
However, if you want a tiebreaker take in mind the following:
++sip-kpml is DTMF Relay via KPML over SIP SUBCRIBE/NOTIFY, it is a standard (RFC 4730).
++sip-notify is DTMF Relay via SIP NOTIFY messages (also called unsolicited notify). This is a Cisco proprietary implementation and is not standardized in any IETF RFC. It is the same method that Unity and CUCM uses to MWI indicators.
In this scenario, I consider that the correct one, taking in account the consideration about Cisco proprietary, correct answer is C.
Reference:
Understanding SBC's Comprehensive Guide to Designing, Deploying, Troubleshooting, and Maintaining CUBE Solutions.
Nother thing is that it is not mentioned what SBC is in use, it could be an Oracle, a Ribbon, etc. However in the question talking about the dial-peers, it targets to a Cisco Gateway or a CUBE. If we where talking about for example a Asterisk Call Control or a Ribbon SBC, we can consider to choose RFC 4730 (KPML). However in this case the SBC is a CUBE or a Cisco Gateway, so to be more specific and compatibility, C, could be the best answer. It is my criteria, you can choose D that it is correct too, but take in mind that one thing is to be facing a Cisco CCNP exam, and another think is facing a real scenario as for example an implementation or a project.
guys .... I had this issue, and my dial-peers were offering "dtmf-relay rtp-nte sip-notify sip-kpml", yet the DTMF was not being recognized by UCCX. Setting it to only "dtmf-relay sip-kpml" resolved the issue. than answer is D
right in the beginning we can see the answer is wrong here. Correct is D
https://www.cisco.com/c/dam/en/us/td/docs/ios-xml/ios/voice/cube_uccx/cube_uccx_interop_bestprac_guide.pdf
D - dtmf-relay sip-kpml
UCCX only supports out-of-band DTMF. This can be applied at the CUBE to avoid a media resource being needed to address as it can directly handle the DTMF relay from RTP-NTE to SIP-KPML
https://www.cisco.com/c/dam/en/us/td/docs/ios-xml/ios/voice/cube_uccx/cube_uccx_interop_bestprac_guide.pdf
Both C and D are valid answers from the CUBE stand point. CUCM has to convert the OOB DTMF into JTAPI and then send it to UCCX. For a more specific answer, the CUCM configuration has to be counted as well. From my experience working with CUBE, CUCM and UCCX, enabling dtmf-relay sip-kpml at the dial-peer is enough to make it work without an MTP.
Great document. Thanks for the link.
This document specifies both KPML and NOTIFY.
Both are OOB DTMF Methods.
upvoted 1 times
...
...
This section is not available anymore. Please use the main Exam Page.350-801 Exam Questions
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
gahhhhaccount
Highly Voted 3 years, 10 months agoNicetomeetyou
Highly Voted 3 years, 10 months agoG0y0
Most Recent 1 month, 2 weeks agoG0y0
1 month, 2 weeks agob3532e4
7 months, 1 week agoBrant
9 months, 1 week agoGCISystemIntegrator
1 year, 7 months agoaocstr
1 year, 9 months agoMeowthL
2 years, 1 month agoasdlfhqwoiefnwe
3 years, 3 months agojarcoman99
3 years, 6 months agoring_phone
3 years, 6 months agoPashat
3 years, 3 months ago