When eSpace clients connect to an enterprise's internal network over the Internet, which of the following services requires an SBC?
In a multi-node centralized network and not supports two unified gateways working in active/standby mode, () SIP server(s) need(s) to be configured for SIP users on the local node.
A company's branch has 20 IP phones that need to register with the primary node. Which of the following devices is most cost-effective and supports local regeneration for the branch?
In which of the following scenarios can the eSpace UC solution adopt only the Linux operating system of the advanced edition?
An enterprise requires high system reliability, so servers, for example, eServer, must be deployed in two-node cluster or load-balance cluster mode. In this scenario, the servers can be deployed in the Windows operating system of standard edition.
In the eSpace UC solution, at least () network adapters must be configured for the eSpace Audio Recorder in a single-node system.
The eSpace UC solution supports the following multimedia conferencing functions (). (Multiple Choice)
Which of the following components do NOT belong to the enterprise communications suite (ECS) in the UC solution? (Multiple Choice)
Only one Meeting MS server has been deployed in an enterprise. The administrator needs to enable the () function on the MS to support multimedia conference services on both internal and external networks.
AR series enterprise routers are the next-generation routing and gateway devices that provide routing, switching, wireless, voice, and security functions. AR series gateways function as integrated branch access gateways in the eSpace UC solution network.
After a user logs in to a mobile client and makes a VoIP call, a message indicating VoIP registration failure is displayed. Which of the following are possible causes? (Multiple Choice)
In a two-node cluster (active/standby) scenario of U1900, which of the following statements is CORRECT?
During the switchover between the active node and the standby node in the remote disaster recovery scenario, ongoing voice conferences will be interrupted.
In a multi-node centralized call management network, only the active node needs to be added for the local node, because the networking data of the standby node is simultaneously delivered by the active node.
In the disaster recovery scenario, when the primary node is faulty, which of the following statements are CORRECT? (Multiple Choice)
Two U1981s are deployed in active/standby mode. By default, when the heartbeat connection between the active and standby devices has been lost for () minute(s) due to the active device fault, the active device is deactivated and the standby device becomes activated.
In a multi-node centralized network, there is a central node with a U1981 deployed, and two branch nodes, one with a U1911 and the other with a U1960. After a call from SIP user A under U1911 to POTS user B under U1960 is connected, the path along which the RTP streams are transmitted is ().
eSight is a web-based unified NE management system and can manage performance and alarms of NEs in the eSpace UC solution.
IP phone user A and IP phone user B register with the same AR router, The AR router does not connect to the PSTN. After A successfully calls B, A can properly talk with B. The call is an () call.
In an external network access scenario, an SBC and an enterprise firewall are deployed in parallel. Which of the following statements are CORRECT as regard to the external eSpace Desktop authentication and registration processes? (Multiple Choice)
In an enterprise's VoIP network, only one U1981 is deployed. One day, the U1981 fails and as a result, all phones at the enterprise's headquarters and branches fail to work. To prevent this situation from happening again, which of the following approaches can be taken? (Multiple Choice)
Which of the following statements is CORRECT about networking schemes in which AR voice routers function as local gateways?
The administrator can set different user levels for accessing the corporate directory. Lower-level users cannot query information about higher-level users in the corporate directory.
During automatic switchboard configuration on a U1900 series unified gateway, the outgoing call permission of the VU must be set to () to implement the following requirement: When users dial the automatic switchboard number, the calls are forwarded only to intra-office numbers.
In a multi-node centralized network, there is a central node with a U1981 deployed and a branch node with a U1911 deployed. SIP user A under U1911 calls an external PSTN user through the branch node's El trunk. After the call is connected, the path along which the RTP streams are transmitted is ().
During software installation, you can first install the eServer and then the BMU and database.
Which of the following statements are CORRECT in the active/standby disaster recovery (DR)
scenario?
(Multiple Choice)