RingCX Voice Connection (RingCentral Phone + Deskphone Pairing) Call Control Enhancement

Summary:
Request to enhance call control functionality when using "RingCentral Phone" as the selected voice connection within RingCX paired with Deskphone

Description:
Currently, when "RingCentral Phone" is selected as the voice connection in RingCX, the call control remains within the RingCX platform (ringcx.ringcentral.com). When Deskphone Pairing is enabled, it allows RingCX calls to be answered through the Deskphone. As a result, users are unable to perform call control actions—such as call transfer, hold and mute— directly from the Deskphone.

Expected Behavior:
When "RingCentral Phone" is selected as the voice connection and RingCentral App is Paired to a Deskphone, users should not be limited to using Deskphone as Media Endpoint. Agents should be able to manage call control on the Deskphone to:

Perform call transfers
Access standard call control features (hold, mute, transfer, etc.)
Seamlessly interact with RingCX features, including voicemail routing

Business Impact:
This limitation affects agent workflow and efficiency, especially for organizations transitioning from Integrated Softphone to RingCentral Phone. It prevents agents from utilizing familiar and centralized call handling using their Deskphone

Use Case:
RingCX Agents would like to utilize full call handling capabilities using deksphone buttons, including the ability to transfer calls, put callers on hold or mute. The current behavior results in failed transfers, hold reflecting possible audio issues and operational friction.

Requested Enhancement:
Enable full call control using Deskphone when "RingCentral Phone" is used as the voice connection in RingCX and RingCentral App is Paired to the Deskphone.