Implementing Cisco Advanced Call Control and Mobility Services (CLACCM) — Question 101

Customers that call into a company’s IVR report that when they try to select an option, none of the prompts work. The administrator determines that the calls are coming in across an H.323 gateway. While analyzing the dial peer that points toward Cisco UCM, the administrator notices that no DTMF method is configured. Which command resolves this issue?

Answer options

• A. dial-peer voice 2 voip dtmf-relay sip-kpml
• B. dial-peer voice 2 voip dtmf-relay h245-alphanumeric
• C. dial-peer voice 2 voip dtmf-relay sip-notify
• D. dial-peer voice 2 pots dtmf-relay h245-alphanumeric

Correct answer: B

Explanation

The correct answer is B, as configuring 'dtmf-relay h245-alphanumeric' on the H.323 gateway allows for the proper transmission of DTMF tones over the connection. Options A and C involve SIP-specific DTMF relay methods which are not applicable for H.323 gateways. Option D uses 'pots' instead of 'voip', which is incorrect in this context since the issue involves a VoIP setup.