Introduction
CloudLink Architecture
CloudLink is Mitel’s cloud solution that provides a platform that enables communications between an on-premise MiVoice Office 400 PBX and cloud-based applications such as Mitel One.

The Mitel CloudLink Solution has three elements:
- CloudLink Platform
- CloudLink Gateway
- CloudLink Apps
CloudLink Platform
The CloudLink Platform is a development platform open to Application Developers, Partners, and Customers. There are tools to build tailored applications with no development knowledge. This is hosted by Mitel on Amazon Web Services (AWS).
CloudLink Gateway
The CloudLink Gateway connects PBXs to the CloudLink Platform and the CloudLink Apps. The CloudLink Gateway facilitates the connection between the PBX and the Endpoints by normalizing the signaling protocols from different PBXs. This provides only one Signaling and Messaging Protocol between the CloudLink Gateway and the CloudLink Platform infrastructure running on Amazon Web Services (AWS).
CloudLink Apps
CloudLink Apps leverage Mitel Application Programming Interfaces (APIs) and microservices so that next generation apps can be continuously and rapidly deployed, management is simplified, and real-time communication delivered to meet customer needs.
The following are the CloudLink applications supported with MiVoice Office 400: