71301X Practice Exam Questions with Answers Avaya Aura Communication Applications Implement Certified Exam Certification

The output from the show mgc command (issued on a G430/G450 Gateway CLI) can indicate whether the G430/G450 is operating as an Internet Friendly (Edge) Gateway or an Enterprise Gateway. An Internet Friendly (Edge) Gateway is a device that provides secure and reliable connectivity between endpoints on different networks, such as the public internet and a private enterprise network. An Enterprise Gateway is a device that provides connectivity between endpoints on the same network, such as a LAN or a WAN. The show mgc command displays information about the Media Gateway Controller (MGC), which is the entity that controls the media gateway functions of the G430/G450, such as call processing, routing, and signaling. The MGC can be an Avaya Communication Manager (CM) server or an Avaya Session Border Controller for Enterprise (ASBCE) server. The output from the show mgc command includes these fields:

• Management Link Mode: This field indicates how the G430/G450 communicates with the MGC for management purposes, such as configuration, monitoring, and troubleshooting. The possible values are Direct or Tunnelled. Direct means that the G430/G450 communicates with the MGC using a direct IP connection over TCP port 5022. Tunnelled means that the G430/G450 communicates with the MGC using a tunnel over TCP port 2944 and secured using TLS. This mode is used when the G430/G450 operates as an Internet Friendly (Edge) Gateway and communicates with ASBCE as the MGC.
• H.248 Link Mode: This field indicates how the G430/G450 communicates with the MGC for media gateway control purposes, such as controlling media streams, allocating resources, and creating connections. The possible values areEGW or IFG. EGW means that the G430/G450 communicates with the MGC using H.248 protocol over UDP port 2944. This mode is used when the G430/G450 operates as an Enterprise Gateway and communicates with CM as the MGC. IFG means that the G430/G450 communicates with the MGC using H.248 protocol over TCP port 2944 and secured using TLS. This mode is used when the G430/G450 operates as an Internet Friendly (Edge) Gateway and communicates with ASBCE as the MGC.
• H.248 Link Status: This field indicates whether the H.248 link between the G430/G450 and the MGC is up or down, and whether it is encrypted or not. The possible values are UP/Encrypted, UP/Unencrypted, DOWN/Encrypted, or DOWN/Unencrypted. UP means that the H.248 link is established and functional. DOWN means that the H.248 link is not established or not functional. Encrypted means that the H.248 link is secured using TLS encryption. Unencrypted means that the H.248 link is not secured using TLS encryption.

Therefore, to determine whether the G430/G450 is operating as an Internet Friendly (Edge) Gateway or an Enterprise Gateway, you can look at these two fields in the output from the show mgc command:

• If the H.248 Link Mode displays IFG, it means that the G430/G450 is operating as an Internet Friendly (Edge) Gateway and communicating with ASBCE as the MGC using H.248 over TCP port 2944 and secured using TLS.
• If the H.248 Link Status displays UP/Encrypted, it means that the G430/G450 is operating as an Internet Friendly (Edge) Gateway and communicating with ASBCE as the MGC using a secure and functional H.248 link.

When planning the Avaya Session Border Controller for an Enterprise (ASBCE) deployment, a good practice to adopt is to name interfaces consistently, for example, Al as “Internal” or “Private” for connectivity to the Call Server. The ASBCE server has four network ports that can be configured as logical interfaces with different IP addresses, subnet masks, gateways, and VLAN IDs. The logical interfaces are named Al, A2, Bl, and B2. A good practice is to use a consistent naming convention for the interfaces that reflects their purpose and function. For example, you can name Al as “Internal” or “Private” because it connects the ASBCE server to the internal network and the Call Server. Similarly, you can name Bl as “External” or “Public” because it connects the ASBCE server to the external network and the Internet. This naming convention can help you avoid confusion and errors when configuring the interfaces and assigning them to zones.

When setting up the Avaya Session Border Controller for Enterprise (ASBCE) SIP Trunking, you need one Subscriber Flow and one Server Flow. A Subscriber Flow is a configuration object that defines how the ASBCE handles SIP requests and responses from or to an endpoint, such as an IP phone or a softphone. A Server Flow is a configuration object that defines how the ASBCE handles SIP requests and responses from or to a server, such as a Communication Manager or a Session Manager. For SIP Trunking, you need one Subscriber Flow that connects the ASBCE to the internal SIP server, and one Server Flow that connects the ASBCE to the external SIP service provider. These flows specify parameters such as source and destination IP addresses, ports, protocols, codecs, encryption, authentication, and routing rules3

When configuring the Avaya Call Park and Page snap-in, the Call Park Extension Group attribute is used to specify the extensions that can be used to park calls. The format of the Call Park Extension Group attribute is as follows:

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The location ID is a numeric value that identifies the location where the Call Park and Page snap-in is deployed. The number of digits is the number of digits in each extension. The extensions are the actual extensions that can be used to park calls. For example, 3(1):4000,4001,4002 means that the Call Park and Page snap-in is deployed in location 3, each extension has one digit, and the extensions are 4000, 4001, and 40021

Avaya Aura® Presence Services does not require a separate license file or an instance license. User licenses are an entitlement as part of the Avaya Aura® suite licensing, such as Foundation, Mobility, Team Engagement, or Customer Engagement. The user licenses are consumed based on the number of users who are provisioned for Presence Services in System Manager

The Survivable Communication Manager (CM) is configured on the System Manager (SMGR) as a Managed Element. A Managed Element is an entity that can be managed by SMGR, such as Communication Manager, Session Manager, Presence Services, or Breeze Platform. A Survivable CM is a Communication Manager instance that provides local call processing and trunking capabilities for remote sites or branches in case of a WAN outage or loss of connectivity with the core servers. A Survivable CM can be deployed on an S8300D server or on an external server such as Dell R620/R630 or HP DL360 G8/G9. To configure a Survivable CM as a Managed Element on SMGR, you need to specify its name, type, IP address, login credentials, and security settings56

The Server ID is a numeric value that identifies each Communication Manager server in the network. The Server ID is used for licensing, administration, and synchronization purposes. Every CM server in the network needs to be assigned a unique Server ID, including servers in a duplex pair. A duplex pair is a configuration where two CM servers are connected by a dedicated link and act as a single logical entity, providing high availability and redundancy for call processing. The Server ID of each CM server in a duplex pair must be an even/odd pair (N, N+1), where N is an even number. For example, if one server in a duplex pair has Server ID 2, theother server must have Server ID 3. The Server ID can be configured during the installation or post-installation of Communication Manager, using the set server-id command

In the Avaya Session Border Controller for Enterprise (ASBCE), the state of a Network Interface, after the deployment, is Disabled. A Network Interface is a logical interface that represents a physical port on the ASBCE server. A Network Interface can be configured with an IP address, subnet mask, gateway, and VLAN ID. After the deployment of the ASBCE server, the Network Interfaces are in a Disabled state by default. To enable a Network Interface, you need to use the ASBCE web interface or CLI and configure the interface parameters. You also need to assign the interface to a Zone, which is a logical grouping of interfaces that defines the security and routing policies for the ASBCE server

To trace SIP messages exchanged during a Remote Worker registration in real-time, you can use the tracesbc CLI tool on the Avaya Session Border Controller for Enterprise (ASBCE). The tracesbc tool is used to capture and display SIP messages and media statistics for calls that traverse the ASBCE server. You can use various filters and options to specify which calls or messages you want to trace. For example, you can filter by source or destination IP address, port, protocol, or call ID. You can also specify how long you want to run the trace and how many messages you want to display. The tracesbc tool can help you troubleshoot and diagnose issues with Remote Worker registration and call setup

To provide the customized music, prompts, and/or error announcements when using the Avaya Call Park and Page snap-in, you need to use the Avaya Aura® Media Server (MS). The Media Server is an application that provides media processing services for voice and video calls, such as playing announcements, music on hold, conferencing, transcoding, and recording. The Media Server can be integrated with the Call Park and Page snap-in on the Avaya Breeze® platform, using SIP trunks and media resources. You can upload your own audio files to the Media Server and configure them as custom announcements for the Call Park and Page snap-in34

A user can retrieve a parked call by dialing the Park extension used to park the call. A Park extension is a virtual extension that is assigned to a parked call by the Call Park and Page snap-in on the Avaya Breeze® platform. A Park extension can be either system-wide or location-specific, depending on how the Call Park feature is configured. A system-wide Park extension can be accessed from any endpoint in any location, while a location-specific Park extension can only be accessed from endpoints in the same location as the parked call. When a user dials the Park extension of a parked call, the Call Park and Page snap-in transfers the call to the user’s endpoint12

Before obtaining a server identity certificate from a Certificate Authority (CA) for the installation on the Avaya Session Border Controller for Enterprise (ASBCE), you need to generate a Certificate Signing Request (CSR). A CSR is a file that contains information about the identity and public key of the ASBCE server, as well as a digital signature that proves the ownership of the public key. A CSR is used to request a server identity certificate from a CA, which is an entity that issues and verifies certificates. The CA will check the information in the CSR and issue a server identity certificate that contains the same information and public key, as well as the CA’s signature and validity period. The server identity certificate is used to authenticate the ASBCE server to other entities that communicate with it using HTTPS or SIP over TLS. To generate a CSR for the ASBCE server, you can use tools such as OpenSSL or Keytool, or use the ASBCE web interface or CLI.

When registering as a Remote Worker via the Avaya Session Border Controller for Enterprise (ASBCE), you should configure the ASBCE External (Public) Interface IP address allocated for Remote Workers in the Server List of the Avaya one-X® Communicator. The ASBCE External (Public) Interface is the interface that connects the ASBCE server to the public Internet and allows communication with external entities, such as Remote Workers or SIP service providers. The ASBCE server acts as a proxy for the Remote Workers and handles the SIP registration and call signaling with the Avaya Aura® Session Manager (SM). Therefore, you need to specify the ASBCE External (Public) Interface IP address as the SIP server address in the Avaya one-X® Communicator settings

If the customer requires High Availability (HA) for the Avaya Session Border Controller for Enterprise (ASBCE), the minimum number of servers or virtual machines that are required is 2. High Availability (HA) is a feature that provides redundancy and fault tolerance for the ASBCE server by deploying two ASBCE servers in a pair, either in the same location or geographically dispersed. The two ASBCE servers act as a single logical entity and share a common configuration and license. One ASBCE server is designated as the active server and handles all traffic, while the other ASBCE server is designated as the standby server and monitors the status of the active server. If the active server fails or becomes unreachable, the standby server takes over and becomes the new active server, ensuring continuity ofservice. The two ASBCE servers synchronize their configuration and state information using a dedicated HA link between them