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Solution Prerequisites for Windows Deployment

Following are the prerequisites for setting up Hybrid Chat solution under different deployment profiles. 

Hybrid Chat Core

NGINX Reverse Proxy & Customer Gadget

Hardware Sizing

For up to 50 concurrent agents8 vCPU, 12 GB RAM, 250 GB HDD2 vCPU, 4 GB RAM, 50 GB HDD

Software Requirements
  • Host Operating System - Windows Server 2016
  • MS SQL Server - Recommended version- Microsoft SQL Server 2014 or above

Certificates for HTTPS
  • Certificates from a valid signing authority or Domain signed certificate required for https protocol support. Certificates should be named:
    • certificate.pem
    • certificate.key
System Access Requirements
  • Administrative privileges on both the host machines are required to proceed with installation.

Browser Compatibility

Agent Gadget

Customer Gadget

Port Utilization

The local security policy and firewall should allow the open communication on the following ports.

Hybrid Chat Core machine:


Source Host



Enable for Outside Network




The external port for Chat Server

yes, only for reverse proxy machine
2HTTPShybrid-chat-core8450anyThe external port for Database Connector

yes, only for reverse proxy machine

3HTTPShybrid-chat-core8482anyThe external port for Communication Serveryes, only for reverse proxy machine
4HTTPShybrid-chat-core8443anyThe external port for Agent Gadget, Mre Frontend, Ecm Frontend, Umm and EABCyes, only for reverse proxy machine
5HTTPShybrid-chat-core8495anyThe external port for File Engineyes, only for reverse proxy machine
6HTTPShybrid-chat-core8095anyThe external port for Mreyes, only for reverse proxy machine
7HTTPShybrid-chat-core8447any The external port for Mre Microserviceyes, only for reverse proxy machine

Nginx Reverse Proxy & Customer Gadget machine

TypeSource HostPortDestinationNotesEnable for Outside Network
1HTTPSreverse-proxy-machine443anyThe external port for Reverse Proxy / Communication Gatewayyes

(lightbulb) Time Synchronization

Communication between Chat Solution, client applications, Cisco Finesse and external reporting carry timestamps. If the system dates and time are not synchronized the system can produce unpredictable results. Therefore, please make every effort to adhere to the following time synchronization guidelines:

Chat Solution, client applications, Cisco Finesse and external reporting database  should have their Time Zone and time configured properly according to the geographic region and synchronized. To configure the time zone, please see the instructions from the hardware or software manufacturer of NTP server. Client applications and EF Connector should be synchronized to the second. This synchronization should be maintained continuously and validated on a regular basis. For security reasons, Network Time Protocol (NTP) V 4.1+ is recommended.

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