CiscoCisco
300-815 · Question #15
300-815 Question #15: Real Exam Question with Answer & Explanation
The correct answer is D: No DTMF is negotiated.. See the full explanation below for the reasoning.
Signaling and Media Protocols
Question
Refer to the exhibit. Users report that when they dial to Cisco Unity Connection from an external network, they cannot enter any digits. Assuming only in-band DTMF is supported, what is a reason for this malfunction?
Options
- AThe negotiated RTP port is outside of the range described by RFC, so inband DTMFs do not work.
- BThere is SIP Delayed Offer. DTMF is supported only in Early Offer.
- CThe rtpmarp:0 value for the negotiated codec is marking DTMF as inactive.
- DNo DTMF is negotiated.
Topics
#DTMF#Media Negotiation#SIP#Cisco Unity Connection
Community Discussion
No community discussion yet for this question.