Grandstream UCM6304 IP PBX, 2000 Users, 4 FXS + 4 FXO, Video Meetings

Overview

A larger office, hotel or multi-department building needs a phone system (IP PBX) with more capacity and more analogue ports than a desktop unit. The Grandstream UCM6304 is a 1U rack phone system for up to 2000 users that runs in your own building, with video conferencing and web meetings built in, four analogue phone ports (FXS), four landline ports (FXO) and dual power adapters for failover.

Is it right for you?

• Suits larger offices, hotels and multi-department buildings with up to 2000 users and up to 300 calls at once (200 with SRTP encryption).
• Suits teams that want internal video meetings without a separate service: unlimited rooms, up to 15 public rooms at once and 200 participants in total.
• Suits offices keeping four analogue phones or fax machines (FXS) and four landlines (FXO); for more landlines add an FXO gateway such as the HT841, and for more analogue phones an FXS gateway such as the GXW4216V2.
• Choose the UCM6308 for more users and analogue ports, the UCM6302 for a smaller desktop unit, or the UCM6304A if video meetings are not needed.

Key features

• Up to 2000 registered users and 300 concurrent G.711 calls (200 with SRTP encryption).
• 4 FXS (analogue phone) and 4 FXO (landline) RJ11 ports, all with power-fail lifeline, so an analogue phone can still reach the landline in a power cut.
• Video conferencing and web meetings: unlimited rooms, up to 15 simultaneous public rooms, 200 participants in total and up to 9 video feeds per room.
• Three Gigabit network ports that work in switched, routed or dual mode, with PoE+, and a NAT router mode, so it can sit behind your router or act as one for the phone network.
• Call centre queues with skills-based distribution, up to 64 IVR (voice menu) layers, voicemail and fax to email.
• Free Wave app for desktop, web and mobile, so staff on the move use their extension from a laptop or phone.
• Secure boot, a unique certificate, a random default password, SRTP, TLS and ZRTP encryption, and hot standby high availability.
• A 128 x 32 dot matrix screen with buttons on the front, two USB 3.0 ports and an SD card slot.

What else you need

• A Session Initiation Protocol (SIP) desk phone, Wi-Fi phone or the Wave app for each user. Grandstream phones get zero-configuration provisioning; other makes register over standard SIP. Phones are bought separately.
• SIP trunks from a provider for outside calls, or four landlines (FXO) on the FXO ports. Trunks are bought separately.
• A network switch for the phones, connected to the LAN port, and your internet router, connected to the WAN port.
• Power from the included 12 V DC adapters (2 A output, two supplied, with dual power jacks so the second adapter takes over if the first fails). The PBX itself needs mains power or an uninterruptible power supply (UPS) to keep working in a power cut; only the analogue ports have lifeline.
• Only if staff work from outside the office, a UCM RemoteConnect (UCMRC) cloud plan, which handles NAT traversal for remote users and devices.
• Only if you need more landlines or analogue phones than the built-in ports, an FXO gateway such as the HT841 or an FXS gateway such as the GXW4216V2.

Installation

A phone system installer or IT team should set it up. The hardware side is a 19 inch rack or desktop job: connect the WAN port to the internet router and the LAN port to the phone switch, then plug in the adapters. The rest is configuration in the web interface: extensions, trunks, voice menus, queues, voicemail and meeting rooms.

The unit measures 485 x 187.2 x 46.2 mm (1U) and is rated for 0 to 45 °C, so it belongs in a dry, ventilated spot such as a network cabinet or office shelf.

Software and licences

The system runs on an Asterisk 16 based operating system. The Wave app is free and runs on desktop, web and mobile. UCM RemoteConnect is a cloud plan for remote users, bought separately. Grandstream Device Management System (GDMS) provides cloud management, and a full API allows integration with CRM (customer relationship management) and hotel PMS (property management system) software.

Before you buy

• Phones and SIP trunks are bought separately.
• If video meetings are not needed, the UCM6304A in the UCM6300 Audio series is the voice-only alternative.
• It is a 1U unit for a 19 inch rack or a desktop.
• Built-in analogue capacity is 4 FXS and 4 FXO.