Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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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
4.8 ★★★★★
Based on 1768 reviews
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Product Reviews
★★★★★ 5
Dog loves them
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
We buy these every month!
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Reviewed in the United States on June 13, 2026
★★★★★ 4
Nice chew!
Pattern Name: Peanut Butter, Size: 12 Inch (Pack of 5)
My American Bulldog loves these sticks. She is an aggressive chewer and these last long enough. My only complaint is the different sizes of the sticks vary. Some of the sticks have nice thickness, others are thin or very thin.
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Reviewed in the United States on September 10, 2025
★★★★★ 5
My dogs love these!
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
It doesn’t matter if it’s a 4 inch or a 6 inch my dogs love these things. We keep them in stock all the time. It’s great for anxiety and their teeth and breath
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Reviewed in the United States on March 26, 2026
★★★★★ 5
My dog LOVES these!
Pattern Name: Peanut Butter, Size: 6 Inch (Pack of 15)
My two year old mini poodle loves these! Of course all dogs love peanut butter. And carrots! The only caution I take is to only let her eat half. Yes it is a wrestling match when making her retreat. LOL
I find if my girl eats it all she is likely to have ugly bowel issue either later or first thing when she rises in the morning . I still buy them over and over but use with a plan in mind. I think they are medium hardness. My dog really needs something harder to engage for days. I do buy the hard Himalayan cheese on Amazon but she prefers her other options. Depending on your breed size and how much you like to clean up poo determines your personal plan for your fur baby.
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Reviewed in the United States on November 19, 2025
★★★★★ 1
Made my dog very sick!
My dog has been eating these for 3 years. He loves them and they help keep his teeth clean. I gave him one from the New bag I ordered. It looked a little lighter in color but I thought it was fine. That was this past Sunday. He only ate half of it and I thought that was odd. That night around 1am he threw up. Then had diarrhea later that morning. I thought maybe he ate something in the yard. Now Monday he stopped eating and had explosive diarrhea. Took him to vet on Tuesday morning. They did bloodwork, checked feces and had x ray done incase of a possible blockage. Finally got results on Thursday and 700.00 later. Doctor said he must of eaten something but can't say exactly what. He's doing better now with an antibiotic. The only thing he ate was that bully bone on Sunday. It was really scary because he was so sick. I will be throwing out these bones and try to find something safe for him to chew. This was a great product until they may have changed ingredients.
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Reviewed in the United States on June 29, 2025