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Question 1

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Which complication does a NAT introduce in SDP for a SIP call?

Question 2

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A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure

Question 3

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When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?

Question 4

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A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally th

Question 5

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What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?

Question 6

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Cisco Collaboration endpoints are exchanging encrypted signaling messages. What is one major complication in implementing NAT ALG for voice and video devices?

Question 7

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What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)

Question 8

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Which media encryption mode can be configured on an Expressway zone?

Question 9

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What is the purpose of a transform in the Expressway server?

Question 10

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An organization with a domain name of example.com. Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

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Related questions

A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP. Which functionality would describe the feature that needs to be enabled and where to achieve this?

Which complication does a NAT introduce in SDP for a SIP call?

Refer to the exhibit. Mobile and remote access is being added to an existing B2B deployment and is failing. When the administrator looks at the alarms on the Expressway-C, the snippets are shown. Which configuration action should the administrator take to fix this issue?

An administrator has been tasked to bulk entitle 200 existing users and ensure all future users are automatically configured for the Webex Hybrid Calendar Service. Which two options should be used to configure these users? (Choose two.)

Refer to the exhibit. Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway. An H.323 endpoint with an alias of “EndpointA” is registered, and a SIP endpoint with an alias of “[email protected]” is also registered. How is this issue resolved?

An engineer is deploying an Expressway solution for the SIP domain Cisco.com. Which SRV record should be configured in the public DNS to support inbound B2B calls?

Refer to the exhibit. An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9. Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?

What is the purpose of a transform in the Expressway server?

Where are voice calls handled in a Cisco Jabber hybrid cloud-based deployment with Cisco Webex Platform Service?

When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verity subject name must be configured on the Expressway-E UC traversal zone?

Question 88 - 300-820 discussion

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What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?

A.

Create user accounts in Cisco Webex Control Hub only.

B.

Create user accounts in Cisco Unified Communications Manager only.

C.

Create user accounts in Cisco Unified IM and Presence.

D.

Create user accounts in Cisco Unified CM and Cisco Webex Control Hub.

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asked 10/10/2024

Alberto Castillo

35 questions

User

Your answer: A B C D

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