Fast dispatch and helpful advice before we placed a multi-site order. Pricing was clear and the product arrived ready for install.
Wesley G.
Grandstream GVC3220 4K Ultra HD Video Conferencing System
- 4K Ultra HD video output (up to 3840 × 2160)
- 8MP CMOS sensor PTZ camera with 12× optical zoom
- Built-in MCU supporting multi-party conferencing
- SIP and H.323 protocol support
- Android operating system (Android 9.0)
- Integrated Wi-Fi and Bluetooth
- Dual HDMI output and HDMI input support
- Wireless screen sharing and content sharing
- GMD1208 wireless microphone for room coverage
- Advanced echo cancellation and noise reduction
- Remote camera control and flexible framing
Video & Camera
- 4K Ultra HD video resolution
- 8MP CMOS sensor
- 12× optical zoom PTZ camera
- Wide field of view for room coverage
- Support for 1080p/720p multi-stream conferencing
Audio
- HD voice support
- Built-in echo cancellation (AEC)
- Noise suppression (ANS)
- Wireless microphone support (GMD1208)
- Full-duplex speakerphone
Network & Connectivity
- Gigabit Ethernet port
- Built-in Wi-Fi (dual-band)
- Bluetooth support
- SIP / H.323 compatibility
Interfaces
- 2 × HDMI output
- 1 × HDMI input
- USB ports (for peripherals and storage)
- 3.5mm audio input/output
- Microphone expansion support
System
- Android-based operating system
- Built-in conferencing MCU
- Support for cloud and SIP video platforms
- Remote management and provisioning support
Security
- TLS and SRTP encryption
- Secure SIP authentication
- Encrypted provisioning support
- Enterprise-grade network security features
Trusted by trade buyers
"CLI Secure has been our go-to for Fortinet hardware and renewals. Fast delivery and knowledgeable support every time."

"We ordered Grandstream phones for a full office rollout. The trade pricing and next-day delivery saved us both time and budget."

"Very professional IT networking supplier. Their pre-sales team helped us spec the right firewall for a multi-site deployment."

"Great stock availability on Hikvision cameras. Everything arrived well packaged and on time. Will order again."

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From product selection to deployment, this is made for real projects.
Get the hardware, licences and supporting kit you need without chasing multiple suppliers. CLI Secure helps trade buyers confirm fit, stock, delivery and project pricing before checkout.
Better buying value
Why trade buyers choose CLI Secure
- Trade and bulk pricing support
- Compatibility advice before purchase
- UK delivery options and account support
- Hardware, renewals and accessories in one place
- Limited project advice
- Unclear warranty or channel source
- Harder to quote bundles and renewals
- Separate suppliers for accessories
- Less flexible fulfilment for mixed baskets
- More admin for repeat trade orders
Why choose us
Procurement that feels fast, clear and trade-ready.
Every product page is designed to help you move from shortlist to checkout with fewer unknowns.
Verified buyer feedback
Trusted by installers, resellers and IT teams.
CLI Secure helped us confirm the right supporting accessories and saved us a return. Good trade service.
Keith D.Reliable fulfilment for security hardware and renewals. The team understands what business buyers need.
Rania M.Common questions
Product and order FAQs
Can I request trade or bulk pricing?
Yes. For multi-unit, reseller or project orders, contact CLI Secure and our team can review the basket for trade pricing.
How quickly can this be delivered?
Available delivery options are shown at checkout. Many in-stock products support next-day or timed UK delivery.
Can you help confirm compatibility?
Yes. Share the existing setup, model numbers or project requirement and we can help confirm suitable hardware, licences or accessories.
Do you supply renewals and supporting accessories?
CLI Secure supplies hardware, renewals, licences and related accessories across networking, CCTV, VoIP and IT support categories.





