What defines the DialPlan on a Cisco Voice Gateway/CUBE?

Question

Options

• AATR
• Bvoice-class
• CVoip voice
• DDial-Peers

• B
  3% (1)
• C
  3% (1)
• D
  95% (36)

Explanation

Dial-Peers define the DialPlan on a Cisco Voice Gateway/CUBE by acting as the fundamental routing construct that matches inbound or outbound calls based on number patterns and specifies how those calls are handled (codec, protocol, destination). Each dial-peer is essentially a row in the routing table for voice traffic - without them, the gateway has no instructions for where to send calls.

Why the distractors are wrong:

• A. ATR (Automatic Trunk Routing) is not a Cisco IOS voice configuration construct; it's not a standard mechanism used to define dial plans on a CUBE/Voice Gateway.
• B. voice-class is a real Cisco command, but it's used to apply settings (like codecs or SIP profiles) to dial-peers - it doesn't define the dial plan itself.
• C. Voip voice is not a valid or meaningful Cisco IOS command in this context; it conflates terms but doesn't represent any actual dial plan mechanism.

Memory tip: Think of Dial-Peers as the voice equivalent of IP routing entries - just as a router needs route entries to forward packets, a Voice Gateway needs dial-peers to route calls. "Peer" = partner endpoint, and the plan for reaching that partner is the dial plan.

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