What is Call Control Mode

Introduction

The Call Control only feature, available in Legacy Collaboration, allows to manage and control calls through the Collaboration interface without using it for audio or video streaming, when the call audio / media is handled by another device.

In Call Control mode, the browser or app acts as a remote call controller for another Wildix Collaboration session or Wildix device. The goal is to separate call control (answering, hanging up, transferring, etc.) from media handling (audio/video), which can be especially useful in specific environments or integrations.

How to Enable Call Control Only

Step 1. Enable the feature in WMS

1. Go to WMS → PBX → Features

2. Enable Collaboration call control option:

Open

Step 2. Enable in Legacy Collaboration

On the Legacy Collaboration login screen, enable the checkbox in front of Call Contol only option:

Open

It is also possible to enable Call control only feature via Collaboration URL. Call control only mode can be automatically enabled by adding the following parameter in the URI to PBX domain name:

Example: https://pbxname.wildixin.com/collaboration/?sip=no

Open

This can be useful when it is needed to share the link among all employees or bookmark the page.

Use Cases

Multiple Collaboration sessions

By default, only one active Legacy Collaboration session is allowed. However, with Call Control mode it’s possible to enable a second Collaboration tab. This can be useful, for instance, in case of running Collaboration alongside another system, when using media devices through a remote desktop connection.

teams4Wildix integration

To be able to control calls from MS Teams, users need a SIP device registered to their account. This can be a Wildix SIP phone for example, or a Wildix Legacy Collaboration Web Phone (place and receive calls directly from the browser). The option Call Control only allows users to control another Wildix Legacy Collaboration running in the browser or as a native app. 

Virtual desktop environments

Call Control mode can also be useful in case of a virtual desktop environment, e.g. integration with Citrix Virtual apps and desktops. In virtual desktop environments audio and video processing typically occur on the remote server, which can lead to performance issues or degraded media quality due to latency and bandwidth limitations.

Call Control mode provides a solution by separating call signaling from media processing. In this setup, the virtual desktop session handles only the call control functions, while the local endpoint or media device, such as a headset, desk phone, or local Collaboration client, handles the actual audio and video streams directly.