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Grandstream UCM6204 IP PBX

Hybrid IP PBX with 4 analog lines, 2 analog extensions and up to 50 SIP lines.

Internal ref: GRAUCM6204UK
Key features
  • Supports up to 500 users, 50 SIP trunk accounts, up to 45 simultaneous calls 
  • Provisioning without configuration of Grandstream SIP terminals
  • Supports IVR (Interactive voice response)
  • LED indicators and LCD screen 
£523.19 Incl. VAT
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Product description

A centralized solution for the communication needs of companies

The Grandstream UCM6204 IP PABX device combines voice, video, and data functions to allow companies a centralized communication solution. In a user-friendly device, companies are able to unify existing features so they can be accessed and managed remotely. 

Complete and reliable solution

The UCM6200 series is a complete and reliable solution that offers functions for companies without license rights. It is designed with all the necessary functions for small and medium companies, without the cost per function and recurring charges. 

The device supports up to 500 users, 50 SIP accounts and up to 45 simultaneous calls. It has two Gigabit network ports with integrated PoE. It is compatible with Grandstream IP phones of the Grandstream GXPXXXX series. 


  • Up to 500 SIP extensions 
  • 4 FXO ports to connect to analog lines 
  • 2 FXS ports to connect analog or fax extensions 
  • Up to 50 SIP trunks 
  • Supports up to 45 simultaneous calls, 3 conference bridges and up to 16 conference attendees. 
  • Maximum security protection possible using SRTP, TLS and HTTPS encryption
  • Two Gigabit network ports with integrated PoE 
  • Supports an IVR (Interface Voice Response) of up to 5 levels
  • Integrated call recording server; access to recordings through the web-based user interface 
  • Supports call queue for efficient handling of call volume 
  • Integrated Call Detailing (CDR) to monitor the use of telephones by line, date, etc. 
  • Automatic multi-language assistant to efficiently handle incoming calls 
  • Integrated LDAP and XML phone directories, flexible dial plan 
  • Supports any SIP video terminal 
  • Supports voicemail and fax forwarding to email

In the box

  • Grandstream UCM6204 device 
  • User manual 


Data sheet

Product Specs.

More Information
Manufacturer part #UCM6204-BNS
Line typeAnalog and IP
N° lines4 Analog, 50 Trunk SIP
N° extensions500
N° simultaneous calls45
Handset typeCorded, Wireless
Direct dial extensionsWith direct dial extensions
Music on hold capableWith on hold music
3-way conferenceWith 3-way calling
Caller IDWith caller ID
Auto attendantWith auto attendant
Plug & playWith plug & play
Centralised directoryWith centralised directory
Auto fax detectWith auto fax detection