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Grandstream UCM6301 VoIP PBX appliance, compact desktop unit, matte black finish

Grandstream

Grandstream UCM6301 VoIP PBX appliance

SKU CH-K4NP-7RGSV MPN UCM6301

IP PBX appliance running Asterisk 16 on a 4-core processor with FXS and FXO ports supporting 500 users and 100 concurrent calls

  • Supports up to 500 users for growing businesses
  • Handles 100 concurrent calls during peak traffic
  • Runs Asterisk 16 on a 4-core processor
  • Includes FXS and FXO ports for analogue lines
  • New appliance first listed by manufacturer in 2026

IP PBX appliance for up to 500 users

The Grandstream UCM6301 is a new IP PBX appliance built on Asterisk 16 with a 4-core processor and 1 GB of RAM. It supports 500 registered users and 100 concurrent calls. The unit includes FXS and FXO ports for analogue line and handset connectivity. It suits small to medium businesses that need an on-premise telephony server.

Replaces legacy analogue or hybrid PBX systems

Moving from a traditional phone system to this appliance removes the need for separate gateway hardware because FXS and FXO interfaces are integrated. The jump is worth it when the organisation wants unified communications features such as voicemail-to-email, call recording and mobile extensions without subscribing to a hosted platform. It also consolidates management into a single web interface.

Steady operation at 100 concurrent calls

Under sustained load the 4-core processor handles the rated 100 simultaneous conversations while maintaining call quality and feature processing. The 1 GB memory buffer supports ongoing SIP signalling, transcoding and recording tasks without short-term throttling. Continuous duty is the design target rather than burst capacity.

How it compares

Measured against everything we stock in IP Phones & VoIP Handsets, at today’s prices. Recalculated every night.

Price $320.99
Pricier than about 80% of the 495 comparable items (median $138.99).

Specifications

Size & build
Shipping weight1.36 kg
Package size381 × 203 × 64 mm

Questions about this item

What physical space does the UCM6301 need for mounting?

The appliance is a standalone desktop unit that sits on a shelf or desk; no rack rails or brackets are mentioned in the specifications.

What installation step is commonly missed when setting up the UCM6301?

Connecting the FXS and FXO ports to analogue lines or handsets before powering on is often overlooked, leaving telephony channels inactive.

What component will need replacement as the UCM6301 ages?

The internal 1 GB RAM module is soldered and not user-replaceable, so memory capacity cannot be upgraded later.

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