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How to Troubleshoot Polycom CX300 R2 Call and Keypad Problems in Skype for Business
Question details
The user needs to fix hardware functionality issues with a Polycom phone integrated with Skype for Business after replacing their computer.
- Product
- Polycom CX300 R2 / Skype for Business
- Device & OS
- not provided
- Scenario
- Operating a Polycom CX300 R2 device connected to Skype for Business on a newly replaced laptop.
- Observed behavior
- The device fails to end active calls when the handset is placed in the cradle, and keypad tones are no longer functioning.
Gather your exact Skype for Business version number, laptop model, and how the device is connected via USB before seeking advanced support.
Post the Issue to the Microsoft Q&A Support Forum
Because this is a highly specialized hardware and software integration issue, the most effective solution is to escalate it to Skype for Business specialists.
Hardware integration issues between legacy Polycom devices and modern laptop setups often require specialized driver checks or registry modifications. These are best handled by Microsoft support engineers in their dedicated Q&A community.
Open your web browser and go to the official Microsoft Q&A website.
Use the search or filter features to add the 'Skype for Business' tag to ensure your question reaches the right product specialists.
Draft a post describing the specific behaviors: the call does not end when the Polycom CX300 R2 is cradled and the keypad tones fail.
List your exact Skype for Business version, the new laptop model, and how the device is connected (e.g., directly via USB or through a docking station).
Enhance Your Productivity with WPS Office
While you troubleshoot specialized communication hardware like the Polycom CX300 in Skype for Business, you might also be looking for more efficient ways to handle your daily documents. WPS Office is a lightweight, free alternative to Microsoft Office that offers seamless compatibility and a familiar interface.
- 1. Download the Installer: Visit the official WPS Office website and download the free installation package.
- 2. Install the Suite: Run the installer and follow the simple on-screen instructions to set up WPS Office on your laptop.
- 3. Open Your Documents: Double-click any existing Microsoft Office file to open it instantly in WPS Office without formatting loss.
Frequently Asked Questions
Why did my Polycom CX300 R2 stop working correctly after changing laptops?
This is typically caused by missing specialized USB drivers on the new laptop, differences in USB port power management, or an outdated or misconfigured Skype for Business client installation.
Are Polycom CX300 devices still fully supported by Microsoft?
Support for legacy Polycom CX devices can be limited on newer operating systems. It is highly recommended to check the Microsoft Q&A forums for community-driven workarounds or official driver updates.
Can a USB hub or dock cause issues with the Polycom CX300 R2?
Yes. Connecting the phone through a USB hub or docking station rather than directly to the laptop's built-in USB port can sometimes cause data communication or power delivery failures, leading to issues with the cradle sensor and keypad tones.
