20+ practice questions focused on Voice Gateways And Session Border Controllers — one of the most tested topics on the Cisco Implementing Cisco Collaboration Core Technologies (CLCOR, 350-801, v2.0 blueprint, CCNP Collaboration) (CLCOR) exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Voice Gateways And Session Border Controllers PracticeA CUBE is rejecting calls because of a mismatch in supported DTMF methods. Which command forces CUBE to offer both RFC2833 and OOB DTMF?
Explanation: dtmf-relay rtp-nte digit-drop is a common configuration, but to support multiple, the dial-peer must explicitly define the relay types.
A CUBE is experiencing media cut-off issues after 30 seconds. Which parameter in the dial-peer configuration is the most likely cause if the re-invite is not being processed correctly?
Explanation: The timer-hold command controls how long the gateway waits for re-invites, but the issue is typically related to the session-timer which governs the SIP session refresh.
You are configuring a dial-peer to route calls to a PSTN gateway using SIP. Which command is required to enable the use of the SIP protocol on the dial-peer?
Explanation: The session-protocol sip command is the foundational command required to define the signaling protocol for a dial-peer.
To allow a CUBE to handle calls for multiple tenants, which feature should be configured?
Explanation: VRFs (Virtual Routing and Forwarding) are used in CUBE for multi-tenancy and network isolation.
You are migrating from H.323 to SIP. Which command on the gateway ensures that H.323 is disabled for new calls?
Explanation: Removing the h323-gateway command or not defining h323 dial-peers prevents H.323 usage.
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2. Review every explanation
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3. Focus on exam traps
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4. Reach 80% consistently
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The exact number varies per candidate. Voice Gateways And Session Border Controllers is tested as part of the Cisco Implementing Cisco Collaboration Core Technologies (CLCOR, 350-801, v2.0 blueprint, CCNP Collaboration) (CLCOR) blueprint. Practicing with targeted Voice Gateways And Session Border Controllers questions ensures you can handle any format or difficulty that appears.
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