350-801 CLCOR: Implementing and Operating Cisco Collaboration Core TechnologiesDemo

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QuestionQ235

Voice Gateways and Session Border Controllers

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Refer to the exhibit. An engineer must implement toll-fraud prevention on a Cisco UCM cluster. Only the SIP protocol must be permitted for connections traversing Cisco Unified Border Element. What must be configured?

  • A
  • B
  • C
  • D
Explanation

Cisco Unified Border Element restricts the protocol types permitted between VoIP call legs with the global voice service voip command allow-connections sip to sip. This allows SIP-to-SIP connections while excluding other VoIP protocol combinations; session protocol sipv2 is a dial-peer setting and does not provide that global connection restriction.

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