Stock Status:
Condition: New
SKU : 5583M92
Supports up to 2,000 users.
Supports up to 300 concurrent G.711 calls.
Supports up to 200 concurrent SRTP calls.
4 FXS ports for analog telephones and fax devices.
4 FXO ports for PSTN line connectivity.
3 self-adaptive Gigabit Ethernet ports with PoE+.
Built-in NAT router.
Built-in voice and video conferencing.
Wave desktop, web and mobile application support.
Zero-configuration provisioning for Grandstream SIP endpoints.
GDMS cloud setup, management and monitoring.
Asterisk version 16-based telephony platform
The Grandstream UCM6304 IP PBX is a high-capacity unified communications platform designed for businesses that require scalable voice, video, conferencing and collaboration services. It supports up to 2,000 users and 300 concurrent G.711 calls, making it suitable for larger offices, institutions, call centers and other organizations with substantial communication requirements. The UCM6304 combines IP telephony with analog PSTN and telephone connectivity through four FXO and four FXS ports.
The system also provides Gigabit networking with integrated PoE+, ZeroConfig provisioning, Wave application support, API integration and GDMS management. Its built-in security features include secure boot, TLS, SRTP, HTTPS, SSH and 802.1X support.
| Product | Price in Kenya |
|---|---|
| Grandstream UCM6304 IP PBX | KSh 100,000 – KSh 105,000 |
| Specification | Details |
|---|---|
| Product Type | IP PBX and Unified Communications Appliance |
| Model | UCM6304 |
| Maximum Users | Up to 2,000 |
| Concurrent G.711 Calls | Up to 300 |
| Maximum Concurrent SRTP Calls | Up to 200 |
| FXS Ports | 4 × RJ11 |
| FXO Ports | 4 × RJ11 |
| Network Interfaces | 3 × self-adaptive Gigabit Ethernet |
| PoE | Integrated PoE+ |
| NAT Router | Yes |
| USB | 1 × USB 2.0, 1 × USB 3.0 |
| Storage | 1 × SD card interface |
| LCD | 128 × 32 dot-matrix graphic LCD |
| Voice Codecs | Opus, G.711, G.722, G.722.1, G.722.1C, G.723.1, G.726, G.729A/B, iLBC, GSM |
| Fax | T.38 |
| Video Codecs | H.265, H.264, H.263, H.263+, VP8 |
| Telephony OS | Asterisk version 16 |
| Security | SRTP, TLS, HTTPS, SSH, 802.1X and secure boot |
| Power Input | 100–240VAC, 50/60Hz |
| DC Output | 12V, 2A |
| Dimensions | 485 × 187.2 × 46.2mm |
| Unit Weight | Approximately 2.49kg |
| Operating Temperature | 0°C to 45°C |
| Storage Temperature | -10°C to 60°C |
| Operating Humidity | 10–90% non-condensing |
Handles up to 300 concurrent G.711 calls.
Supports up to 2,000 registered users.
Supports up to 200 concurrent G.711 calls using SRTP encryption.
Provides high-capacity call routing for growing organizations.
Supports call queues, IVR, voicemail, call recording and conferencing.
Provides Full-Band Opus for high-quality voice communication.
Jitter resilience can help maintain communication quality under challenging network conditions.
Supports voice and video meetings through the integrated communications platform.
Supports third-party integration through its API.
Rack-friendly 485 × 187.2 × 46.2mm chassis.
Approximately 2.49kg unit weight.
128 × 32 dot-matrix LCD for system information and menu navigation.
Four FXS and four FXO RJ11 ports.
Three Gigabit Ethernet ports with PoE+.
Two USB 3.0 ports and one SD card interface.
Designed for desktop or structured network deployments.
Dual 12V power connections provide the specified power arrangement for the UCM6304.
Connects analog phones and fax equipment through four FXS ports.
Connects PSTN lines through four FXO ports.
Provides three Gigabit Ethernet interfaces.
Supports PoE+ for compatible network-connected devices.
Supports Grandstream SIP phones and endpoints through ZeroConfig provisioning.
Compatible with Wave applications on desktop, web and mobile platforms.
Supports GDMS for centralized cloud management.
Supports SIP, RTP, RTCP, IAX, IPv6, OpenVPN, TLS and SRTP.
API support allows integration with selected third-party applications such as CRM and PMS platforms.
Medium to large business offices.
Corporate communication systems.
Call centers and customer-service operations.
Hotels and hospitality businesses.
Universities and educational institutions.
Hospitals and healthcare organizations.
Government and institutional offices.
Multi-branch business communication networks.
SIP-based business telephone systems.
Organizations requiring voice, video and conferencing capabilities.
| Pros | Cons |
|---|---|
| Supports up to 2,000 users | Requires professional configuration for advanced deployments |
| Up to 300 concurrent G.711 calls | Larger than entry-level UCM models |
| 4 FXS and 4 FXO ports | Intended primarily for business environments |
| Integrated PoE+ | Network planning is required for large deployments |
| Built-in voice and video conferencing | Advanced features may require technical expertise |
| Wave application support | |
| GDMS cloud management | |
| Strong security features | |
| API integration support |
How many users does the Grandstream UCM6304 support?
The UCM6304 supports up to 2,000 users.
How many concurrent calls can the UCM6304 handle?
It supports up to 300 concurrent G.711 calls and up to 200 concurrent G.711 SRTP calls.
How many FXS ports does the UCM6304 have?
The UCM6304 provides 4 FXS RJ11 ports for compatible analog telephone and fax equipment.
How many FXO ports does the UCM6304 have?
It provides 4 FXO RJ11 ports for connecting compatible PSTN lines.
Does the UCM6304 support PoE+?
Yes. The UCM6304 has three self-adaptive Gigabit Ethernet ports with integrated PoE+ support.
Does the UCM6304 support video conferencing?
Yes. The UCM6304 includes a built-in conferencing and meetings platform and supports video conferencing through compatible endpoints and Wave applications. Current Grandstream documentation lists up to 40 parties with 1080p for the UCM6304 video conferencing configuration.
Does the UCM6304 support remote communication?
Yes. Wave applications support communication through compatible desktop, web and mobile platforms, while Grandstream provides automated NAT traversal capabilities for secure remote connections.
Can the UCM6304 connect to existing analog telephone systems?
Yes. Its four FXS ports support compatible analog telephone or fax devices, while four FXO ports provide PSTN connectivity.
Does the UCM6304 support third-party integrations?
Yes. Grandstream provides an API for third-party platform and application integration, including CRM and PMS applications.
The Grandstream UCM6304 IP PBX is a powerful unified communications solution for organizations requiring high user capacity, substantial concurrent call handling and flexible analog and IP connectivity. With support for up to 2,000 users, 300 concurrent G.711 calls, four FXS ports, four FXO ports, Gigabit networking, PoE+, conferencing, Wave applications and centralized management, it provides a scalable platform for demanding business communication environments.
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