Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Grandstream UCM6304 Unified Communication PBX with 4 FXS & 4 FXO PortsEmpower Your Business with a Unified Communications Hub The Grandstream UCM6304 is a powerful and scalable IP PBX appliance designed to be the central hub of your business communication network. This enterprise grade solution unifies all your communication channels, including voice, video calling, video conferencing, web meetings, and more, onto a single, manageable platform. With support for up to 2,000 users and 300 concurrent calls, the UCM6304 is
Empower Your Business with a Unified Communications Hub
The Grandstream UCM6304 is a powerful and scalable IP PBX appliance designed to be the central hub of your business communication network. This enterprise-grade solution unifies all your communication channels, including voice, video calling, video conferencing, web meetings, and more, onto a single, manageable platform. With support for up to 2,000 users and 300 concurrent calls, the UCM6304 is built to handle the demands of a growing business without requiring any licensing fees. Its robust suite of features provides a comprehensive communication and collaboration solution for both on-site and remote teams.
Key Features and Benefits:
- All-in-One Communication Platform: Integrates voice, video, data, and mobility to streamline your business communications.
- High Capacity and Performance: Supports up to 2,000 users and 300 concurrent calls, with up to 200 using SRTP encryption.
- Built-in Conferencing: Host video conferences with up to 40 participants and audio conferences with up to 200 participants.
- Flexible Connectivity: Features 4 FXO ports for PSTN lines and 4 FXS ports for analog devices, ensuring compatibility with traditional telephony.
- Advanced Security: Your communications are protected by a secure boot, unique certificates, and random default passwords.
- Remote Collaboration: The Wave app for desktop and mobile allows your team to stay connected and collaborate from anywhere.
- Effortless Management: Can be managed through the Grandstream Device Management System (GDMS) for cloud-based setup and monitoring.
Technical Specifications
| Category | Specification |
|---|---|
| Analog Ports | 4 x RJ11 FXS Ports, 4 x RJ11 FXO Ports (with lifeline capability) |
| Network Interfaces | 3 x Self-adaptive Gigabit ports with integrated PoE+ and NAT router |
| Peripheral Ports | 2 x USB 3.0, 1 x SD card interface |
| Capacity | Users: 2,000 Concurrent Calls: 300 Concurrent SRTP Calls: 200 |
| Conferencing | Video Conference: Up to 4 rooms and 40 parties (1080p) Voice Conference: Up to 200 parties |
| Voice-over-Packet Capabilities | LEC with NLP, 128ms-tail-length echo cancellation, Dynamic Jitter Buffer, Modem detection, Auto-switch to G.711 |
| Voice and Fax Codecs | G.711µ/a, G.722, G.723.1, G.726, G.729A/B, iLBC, Opus |
| Video Codecs | H.264, H.263, H.263+, H.265, VP8 |
| Display | 320x240 color LCD with touch screen |
| Provisioning and Control | GDMS for cloud setup, management, and monitoring. Web GUI for local control. |
| Security | Secure boot, unique certificate, random default password, SRTP, TLS, HTTPS. |
| Power | Universal Power Supply; Input: 100 ~ 240VAC, 50/60Hz; Output: DC 12V, 2A |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1239 reviews
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Product Reviews
★★★★★ 4
Great shoes that are well made, lite weight, and comfortable.
Size: 12, Color: Brown
Just received my 2nd pair of shoes from Bruno Marc in a size 12. These are really lite and comfortable. It can be dressed down to be a casual shoe or dressed up with a nice suit. These run true to size so I ordered my usual size 12 and the fit was perfect. Being my 2nd pair of Bruno Marc's, I like the quality of their shoes and each shoe is described appropriately on fit and comfort. Insole of these shoes were awesome and provided soft comfort on the feet along with a slight arch support too. Will definitely consider ordering more Bruno Marc shoes in the future.
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Reviewed in the United States on March 11, 2025
★★★★★ 5
Cushioned, comfortable, stylish and a rubber sole!
Size: 10, Color: Brown
These shoes check multiple boxes for me, comfortable, cushioned, rubber sole and stylish. As my feet grow old and worn out, I'm on a constant search for comfortable, cushioned shoes that are suitable for work and dressier occasions. I have tried many expensive shoes that look great but either lack cushioning, arch support and or comfort. One of the nice things is these shoes have a rubber sole, where most cushioned shoes have the foam soles which are great, but they tend to lack grip particularly when its damp/wet. They have average arch support, but the insole is removable and I put my own cushioned arch support. Love these!
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Reviewed in the United States on April 6, 2026
★★★★★ 5
OG Style
I am a big fan of Bruno Marc shoes. Over the years they have provided comfortable and affordable boots and shoes. These blue, tan and white soled dress sneakers are no exception. They have a nice finished look that makes them both causal and dressy. The lightweight style is still warm enough for colder mid-west winters. The box of the toes is wide and comfortable. The insole is well padded and a pleasure to wear. This is another fine pair of shoes to add to my collection and yours.
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Reviewed in the United States on January 14, 2026
★★★★★ 5
Must buy: Comfort + Casual + Well Made / Ventilated
Size: 8, Color: Brown
Just buy it! I have put in roughly 15,000 steps in this shoes in 10 days and I can't believe how comfortable they are after this much rough use in short amount of time. I highly recommend this shoes to anyone looking for comfort in casual style.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
WIDE Dress Shoes With SUPPORT
Size: 10.5, Color: Brown
I've seen dress shoes and worn dress shoes before, but these are simply the best dress shoes I've ever worn my entire life. 99% of dress shoes have the same problem, they have the thinnest little soles that offer no support. BRUNO MARC HAS SOLVED THE PROBLEM. These dress shoes not only support wide feet like mine who historically have had and still have little support in the market, but Bruno Marc has wide options that fit perfectly, and the support with the thick foam sole is so needed and awesome. I had a pleasant surprise putting these things on and there being some tactile grip enhancers inside the shoe so you can feel the shoes better and get a little tickle / massage while you're at it. These things are dripping with style, easy to wear, and while they might look firm on the outside, on the inside the shoe just has such a nice flexibility and foamy feel, the top where the top of your feet feel the roof of the shoe, it has such perfect ooey gooey support I can't believe it. The outside sole also has this neat tactile feel. The durability looks good and feels good for now.
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Reviewed in the United States on September 28, 2025
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