Fix Remote Desktop (RDP) Microphone Redirection for Windows VPS (Zoiper / VoIP Setup)

Description: I have a Windows VPS hosted on Binary Lane Windows Server that I access via Remote Desktop RDP from my local Windows laptop. Everything is working except microphone input redirection. Current setup: VPS Windows Server on Binary Lane Access Remote Desktop mstsc Audio output speakers working correctly Microphone input not detected in VPS Device in VPS shows no recording devices installed I am trying to use Zoiper VoIP softphone and Zoom inside the VPS What works: I can successfully connect via RDP I can hear audio from VPS YouTube system sounds Remote Audio device appears in system Problem: The VPS is not receiving microphone input from my local USB headset Logitech H390 even though: Record from this computer is enabled in RDP settings Microphone works perfectly on local machine Headset is detected locally and tested successfully Inside the VPS: Sound recording tab shows no input devices Zoiper only shows Remote Audio loopback and no real microphone device What I need: I need someone experienced with Windows Server RDP audio redirection VoIP softphone setups Zoiper preferred experience and Group Policy RDP device redirection policies To: Enable proper microphone input redirection into the VPS Ensure microphone is available as a usable input device inside Windows Server Confirm it works with Zoiper and optionally Zoom Ensure stable low latency audio setup for calls Important notes: This is not a headset issue hardware works locally This is not a basic Zoom or Zoiper config issue This is likely RDP policy redirection or session configuration Bonus if you can: Improve audio latency and stability for VoIP calling over RDP Recommend better VPS side setup for calling use case Budget: Fixed price or hourly open to offers Requirements: Please only apply if you have experience with Windows Server RDP audio redirection VoIP SIP softphone setups Zoiper ideal and Remote Desktop device redirection policies