Explanation
According to the Avaya Workforce Engagement Installation Guide, some procedures are the customer's responsibility before installing or upgrading the software. These procedures include:
Firewall configuration: The customer must ensure that the firewall rules allow communication between the servers and clients in the domain, as well as external services such as email, NTP, and DNS. The customer must also open specific ports for different components of the Avaya Workforce Engagement solution, such as recording, playback, database, and web services. The installation guide provides a list of ports that need to be opened for each component.
SSL certificates preparation: The customer must prepare and install SSL certificates for securing the communication between the servers and clients in the domain. The customer can use self-signed certificates or certificates issued by a trusted certificate authority (CA). The installation guide provides instructions on how to generate and install SSL certificates for different components of the Avaya Workforce Engagement solution, such as recording server, application server, web server, and database server.
Antivirus installation: The customer must install and configure an antivirus software on each server in the domain to protect the system from malware and viruses. The customer must also exclude certain folders and processes from antivirus scanning to avoid performance issues or conflicts with the Avaya Workforce Engagement software. The installation guide provides a list of folders and processes that need to be excluded from antivirus scanning for each component of the Avaya Workforce Engagement solution.
The other two procedures, SR tool software installation and SSRS preparation for reports ingestion, are not the customer's responsibility, but rather part of the installation or upgrade process performed by the technician or administrator. References: : Avaya Workforce Engagement Installation Guide, pages 17-28, sections
"Prerequisites" and "Preparing for installation or upgrade"

Explanation
The Archive Database server role provides all access to the Archive Database. The Archive Database is a SQL Server database that stores the metadata of the recordings, such as call details, agent information, quality scores, and encryption keys. The Archive Database server role must be assigned to a server that has SQL Server installed and configured. The Archive Database server role can be assigned to a standalone server or to a server that also has other roles, such as Central Archive or Quality Monitoring3 References: 3: Avaya Workforce Engagement Support - Archive Configuration Guide, page 8-94

Explanation
According to the Avaya Workforce Engagement Support Installation Guide, the recorder Integration Service is a component that enables the recorder to communicate with the switch and receive call signaling and metadata.
The recorder Integration Service requires a CTI adapter, which is a software module that connects to the switch and provides the necessary information to the recorder. There can be multiple CTI adapters per system, depending on the number of data sources and switches. A CTI adapter is necessary for Integration Service, as it is responsible for providing the call data to the recorder. References: Avaya Workforce Engagement Support Installation Guide, page 18.

Explanation
Avaya Contact Recorder Advanced (ACRA) supports three types of VoIP delivery recording: DMCC, SIPREC, and VoIP Gateway Recording. DMCC stands for Device Media and Call Control, which is a method of recording VoIP calls by using the Avaya Aura Communication Manager API to establish a third-party call between the recorder and the agent or trunk. SIPREC stands for SIP Recording, which is a method of recording VoIP calls by using the SIP protocol to stream media from a Session Border Controller (SBC) or a Media Server to the recorder. VoIP Gateway Recording is a method of recording VoIP calls by using a network device such as a switch or a router to mirror the VoIP traffic to the recorder. References:
Avaya Workforce Engagement Contact Recording Installation Guide, page 131 Avaya Workforce Engagement Contact Recording User Guide, page 112