A company’s employees have been unable to select a n option on the UCCE internal IVR of the help desk. IT support has been given Cisco UCM traces and below is the snippet of the SDR of the INVITE packet.
m=audio 25268 RTP//WP 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:18 G729/8000
a=ptime:20
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-evenV8000
a=fmtp:101 0-15
How is this issue resolved?
A . Configure DTMF for KPML.
B. Configure DTMF for RFC 2833.
C. Configure CODEC for G.722.
D. Configure CODEC for G.729.
Answer: A
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