Yealink VCM34 Microphone
Frequently Asked Questions
First, confirm that the microphone LED is solid green (unmuted). On the host Yealink device, navigate to the audio settings menu and verify that the VCM34 is listed as the active microphone input and is not muted in software. If you are using a video bar, also check the connected PC’s audio settings to ensure the Yealink speakerphone, not the computer’s built-in mic, is selected as the default communication device.
The VCM34 requires Power over Ethernet and will not function on a standard non-PoE network port. Verify the cable is connected to a PoE-capable switch or a PoE injector that supplies 802.3af power. A quick test is to try a known working PoE port that successfully powers another device, such as a Yealink phone, to rule out a switch configuration or port failure issue.
No, the VCM34 is not a USB audio device. It connects via Ethernet to a compatible host such as a Yealink MVC video conferencing system or a CP965 conference phone. The host device then connects to your computer. Plugging the VCM34 into a computer’s Ethernet port or a USB-to-Ethernet adapter will not make it appear as a microphone.
You connect up to four VCM34 units to a PoE switch, and then link that switch to the LAN port on your Yealink host device. The units are configured through the host device’s web interface or on-screen menu, where you assign each VCM34 to a specific channel. There is no daisy-chaining; each microphone requires its own cable run back to the switch.
This is often a gain structure or placement issue. First, lower the speaker volume on the host device slightly and see if the echo stops. Ensure the microphone is not placed directly in front of or too close to the loudspeaker. On the host Yealink device, check that the Acoustic Echo Cancellation (AEC) feature is enabled in the audio settings menu.
The 20-foot range is measured in ideal acoustic conditions. Large windows, high ceilings, and hard surfaces can create reflections that confuse the microphone array’s beamforming. Try repositioning the unit closer to the participants and away from walls. Also check the host device’s settings for any noise gate or squelch threshold that may be set too aggressively, cutting off quieter voices.
This is likely the Comfort Noise Generator (CNG) being slightly too prominent. Check your host device’s firmware is up to date, as Yealink periodically refines audio processing. In the audio settings, you may be able to adjust the CNG level or try disabling Voice Activity Detection to see if the noise floor changes. If the issue persists, a Toronto-based VoIP support provider can usually resolve this remotely.
VoIP Conference Phones
Yealink VCM34 Microphone
*Built-in 3-microphone array for improved audio quality • 20ft (6m) and 360° voice pickup range for effective communication in large conference rooms • Yealink Noise Proof Technology to reduce background noise and ensure clear audio • Power over Ethernet (PoE) for convenient installation • Up to 4 units can be cascaded for extended audio capture distance • Weight: 1 lbs, Dimensions: 9 × 8 × 4 in *Additional Information: • Suitable for large and medium-sized video conferencing rooms • Compatible with Microsoft Teams and Zoom video conferencing platforms • Brand: Yealink *Technical Specifications: • Built-in 3-microphone array • 360° voice pickup • Optima HD voice quality • 20ft (6m) voice pickup range • Muting the microphone with touchpad • Background noise suppression • VAD (Voice Activity Detection) • CNG (Comfort Noise Generator) • AEC (Acoustic Echo Canceling) • Yealink Noise Proof Technology
About This Product
The Yealink VCM34 is a dedicated conference room microphone array built for medium and large meeting spaces where the table microphones built into a speakerphone simply cannot reach every seat. It is designed as an accessory, pairing with a compatible Yealink conference phone or video bar to dramatically extend the audio pickup zone. In a huddle room or small boardroom, this device is overkill; its value is clear in large rectangular or U-shaped tables where participants are spread far apart, or in spaces with difficult acoustics.
When cascading up to four units together, the VCM34 becomes a scalable solution for very large boardrooms or training rooms. This makes it a practical alternative to installing expensive, permanently wired ceiling microphone arrays, especially in leased offices common in the GTA where structural changes are limited. It connects over a single Ethernet cable with Power over Ethernet, so placement is flexible as long as you can reach a PoE switch or injector. The primary trade-off is that it is not a standalone device; you must already have a Yealink host system like an MVC-series video bar or a CP965 conference phone to process its audio.
Canadian businesses evaluating this microphone should note that it relies entirely on the host device’s platform certification. The VCM34 itself is not a USB device you can plug into any computer; its compatibility with Microsoft Teams and Zoom is dependent on the host system it is connected to. Noise Proof Technology is particularly relevant in open-concept Canadian offices or converted warehouse-style spaces, where HVAC noise and cross-talk from adjacent workstations can be a constant problem. It is designed to suppress that background noise without cutting out quieter voices at the far end of the table.
For a deployment in a standard 4-to-6-person room, a single high-quality speakerphone is usually sufficient and simpler. The VCM34 makes sense when you have a long table and people seated far from the main system, or when the room is acoustically live and you need to bring the microphones closer to the talkers. It is a purpose-built expansion tool, not a general-purpose microphone, and it performs best when that specific purpose is a genuine need.
When cascading up to four units together, the VCM34 becomes a scalable solution for very large boardrooms or training rooms. This makes it a practical alternative to installing expensive, permanently wired ceiling microphone arrays, especially in leased offices common in the GTA where structural changes are limited. It connects over a single Ethernet cable with Power over Ethernet, so placement is flexible as long as you can reach a PoE switch or injector. The primary trade-off is that it is not a standalone device; you must already have a Yealink host system like an MVC-series video bar or a CP965 conference phone to process its audio.
Canadian businesses evaluating this microphone should note that it relies entirely on the host device’s platform certification. The VCM34 itself is not a USB device you can plug into any computer; its compatibility with Microsoft Teams and Zoom is dependent on the host system it is connected to. Noise Proof Technology is particularly relevant in open-concept Canadian offices or converted warehouse-style spaces, where HVAC noise and cross-talk from adjacent workstations can be a constant problem. It is designed to suppress that background noise without cutting out quieter voices at the far end of the table.
For a deployment in a standard 4-to-6-person room, a single high-quality speakerphone is usually sufficient and simpler. The VCM34 makes sense when you have a long table and people seated far from the main system, or when the room is acoustically live and you need to bring the microphones closer to the talkers. It is a purpose-built expansion tool, not a general-purpose microphone, and it performs best when that specific purpose is a genuine need.
Services We Provide
- Professional Installation & Configuration
- Ongoing Maintenance & Support
- Troubleshooting & Repairs
- System Upgrades & Updates
