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Cisco 300-815 Full Course Access
Cisco 300-815 View All Questions

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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?

A.

The negotiated RTP port is outside of the range described by RFC, so inband DTMFs do not work.

B.

There is SIP Delayed Offer. DTMF is supported only in Early Offer.

C.

The rtpmap:0 value for the negotiated codec is marking DTMF as inactive.

D.

No DTMF is negotiated.

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You see the voice register pool 1 command in your Cisco Unified Communications Manager Express...
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