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Grandstream UCM6304A Audio IP PBX 1000 Users 150 Concurrent Calls 4 FXO 4 FXS Gigabit PoE+

Price:

$ 550.45


Grandstream UCM6302A Audio IP PBX 500 Users 75 Concurrent Calls 2 FXO 2 FXS Gigabit PoE+
Grandstream UCM6302A Audio IP PBX 500 Users 75 Concurrent Calls 2 FXO 2 FXS Gigabit PoE+
$ 457.89
$ 457.89
Grandstream UCM6308A Audio IP PBX 1500 Users 200 Concurrent Calls 8 FXO 8 FXS Gigabit PoE+
Grandstream UCM6308A Audio IP PBX 1500 Users 200 Concurrent Calls 8 FXO 8 FXS Gigabit PoE+
$ 993.53
$ 993.53

Grandstream UCM6304A Audio IP PBX 1000 Users 150 Concurrent Calls 4 FXO 4 FXS Gigabit PoE+

https://arcip.com.au/web/image/product.template/15718/image_1920?unique=6bbe47d

Grandstream UCM6304A UCM6300 Audio series IP PBX. Up to 1000 users, 150 concurrent G.711 calls, 120 concurrent SRTP calls. 4 FXS and 4 FXO RJ11 ports with lifeline capability. Three self-adaptive Gigabit ports with NAT router. Built-in instant messaging, audio conferencing and web meetings (no video conferencing), free Wave app for desktop, web, Android and iOS. UCM RemoteConnect NAT traversal, Zero Config provisioning, GDMS management, Hot Standby High-Availability, Opus codec, up to 64-layer IVR, call queues. Based on Asterisk 16. Wall mount and desktop. Genuine Grandstream from ARC IP Networks, authorised Grandstream reseller with Australian stock.

$ 550.45 550.45 AUD $ 550.45 incl. GST

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    Authorised Australian Reseller | Australian Stock | Genuine Local Warranty

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Estimate delivery times: 3-7 business days 
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UCM6304A

Grandstream UCM6304A at a glance

The Grandstream UCM6304A is a UCM6300 Audio series IP PBX supporting up to 1000 users and 150 concurrent G.711 calls, with built-in instant messaging, voice meetings and the free Wave app. It has 4 FXS and 4 FXO analog ports with lifeline capability, three Gigabit network ports and supports UCM RemoteConnect for remote users. The Audio series does not include video conferencing.

ARC IP Networks is an authorised Grandstream reseller in Australia. We supply the Grandstream UCM6304A from Australian stock.

Users1000
Concurrent calls150 (G.711)
Analog ports4 FXS + 4 FXO
Network3x Gigabit

Best for

  • Businesses of up to 1000 users that want an on-premise phone system with cloud-style remote access
  • Teams that need voice meetings and instant messaging without video conferencing
  • Sites keeping analog phones, fax machines or PSTN lines alongside VoIP

Key features

Supports up to 1000 users and 150 concurrent G.711 calls (120 concurrent SRTP calls).

4 FXS and 4 FXO RJ11 ports, all with lifeline capability in case of power outage.

Built-in instant messaging (IM), audio conferencing and web meetings platform.

Unlimited meeting rooms with up to 7 simultaneous public rooms and 120 participants combined.

Free Wave app for desktop, web, Android and iOS for calls, chat and meetings.

UCM RemoteConnect cloud service provides automatic NAT firewall traversal for remote users.

Three self-adaptive Gigabit ports (switched, routed or dual mode) with integrated NAT router.

Zero Config provisioning of Grandstream SIP endpoints and GDMS cloud management.

Secure boot, unique certificate and random default password; SRTP, TLS and HTTPS encryption.

Hot Standby High-Availability support; based on Asterisk version 16.

Grandstream UCM6304A specifications

Grandstream UCM6304A technical specifications
SpecificationValue
Capacity
Users1000
Concurrent calls (G.711)150
Concurrent SRTP calls (G.711)120
MeetingsUnlimited rooms, up to 7 simultaneous public rooms, 120 participants combined
Auto attendantUp to 64 layers of IVR
Interfaces
FXS ports4 RJ11 (lifeline capable)
FXO ports4 RJ11 (lifeline capable)
NetworkThree self-adaptive Gigabit ports (switched, routed or dual mode) with PoE+
NAT routerYes (router mode and switch mode)
Reset switchYes
Voice
Voice and fax codecsOpus, G.711 A-law/U-law, G.722, G.722.1, G.722.1C, G.723.1, G.726-32, G.729A/B, iLBC, GSM; T.38
Echo cancellation128 ms tail-length carrier grade LEC
Packet loss resilienceUp to 50% audio packet loss
Telephony OSBased on Asterisk version 16
Features
Call featuresCall park, forward, transfer, record, IVR, ring groups, call queues, paging/intercom, voicemail to email, fax to email, BLF, SCA
Call centreMultiple call queues with skills-based ACD
Wave appFree for Windows, Mac, web (Firefox, Chrome), Android and iOS
Remote accessUCM RemoteConnect NAT traversal service
APIFull API for third-party integration (CRM, PMS)
Security & Management
Media encryptionSRTP, TLS, HTTPS, SSH, 802.1X
ProvisioningAES encrypted XML, ZeroConfig auto-discovery of Grandstream endpoints
ManagementGDMS cloud setup, management and monitoring
Physical
Dimensions270 mm (L) x 175 mm (W) x 36 mm (H)
Unit weight775 g
Package weight1621 g
MountingWall mount and desktop
Operating temperature0°C to 45°C
ComplianceFCC, CE, IC, RCM

Figures from Grandstream's official product information.

The Grandstream UCM6304A in depth

Unified communications on an on-premise PBX

The UCM6304A unifies voice, instant messaging, voice meetings, audio web meetings and mobility on one platform for up to 1000 users. The free Wave app lets staff call, chat and join meetings from desktops, browsers and mobiles, while UCM RemoteConnect provides secure NAT traversal for remote workers.

Built for reliability and security

Opus full-band audio with resilience to 50% packet loss, Hot Standby High-Availability support and advanced security (secure boot, unique certificate, random default password) keep calls running and protected. GDMS adds zero-touch cloud setup and monitoring. 4 FXS and 4 FXO ports with lifeline capability connect analog phones, fax machines and PSTN lines.

Frequently asked questions

Straight answers about the Grandstream UCM6304A from the ARC IP Networks team. Last reviewed October 2026.

Grandstream rates the UCM6304A for up to 1000 users and 150 concurrent G.711 calls (120 concurrent SRTP calls).

No. The UCM6300 Audio series includes instant messaging, audio conferencing and web meetings, but not video conferencing.

Yes. It has 4 FXS ports and 4 FXO ports, all with lifeline capability in case of power outage.

Wave is Grandstream's free desktop, web and mobile app that lets users join UCM-hosted meetings, chat and make or receive calls using their UCM extension.

Yes. It supports UCM RemoteConnect, a cloud NAT firewall traversal service for secure connections from remote users and devices.

ARC IP Networks is an authorised Grandstream reseller and supplies the UCM6304A from Australian stock.

Explore more Grandstream: VoIP/IP Phones

Buy the Grandstream UCM6304A in Australia

ARC IP Networks is an authorised Grandstream reseller, supplying Grandstream products to homes, businesses and integrators across Australia.

  • Genuine Grandstream with the full manufacturer's warranty.
  • Australian stock, shipped Australia-wide.
  • Local pre-sales help choosing the right model.
  • Trade and project pricing available.

Need help choosing Grandstream?

Ask ARC IP Networks for project pricing or a quote, or call us to check the right Grandstream model for your site.

Brand Grandstream

Accurate Shipping Costs

Our online shipping calculator is designed to provide a final, accurate shipping cost based on the items in your cart and your delivery postcode. Shipping costs are calculated at checkout based on your order and delivery postcode. The final cost is calculated based on several factors which are automatically accounted for by our system, including:

  • The stock location of the item(s) across our warehouses.
  • Orders with multiple items that may require special packaging.
  • The weight and dimensions of the order (including heavy or oversized items).
  • The delivery courier servicing your specific region.

Delivery Times


 

Standard Processing


Most orders placed by 2pm AEDT are dispatched for next working day delivery. Larger orders may require 1-2 additional business days for processing. If timing is critical, please contact us to discuss expedited options (additional charges may apply).


Delivery Timeframes


Region

Processing Time

Express Delivery

Standard Delivery

VIC, NSW, SA, QLD Metro, TAS

1-2 business days

1-2 business days

2-4 business days

NT, WA, QLD Rural

1-2 business days

1-2 business days

3-5 business days

New Zealand

1-2 business days

2-3 business days

4-10 business days

Please note: Processing times may extend during peak periods such as Christmas and end of financial year.

Free Warehouse Pickup



Save on shipping costs with free pickup from our ARC IP Networks Blackburn warehouse. Simply place your order online or by phone, and collect during business hours (Monday to Friday). Please allow time for picking and packing. For urgent orders, call 1300 100 440 to confirm your order is ready.

ARC IP Networks Pickup Address: 6 George Street, Blackburn, VIC 3130


Insurance & Tracking



All ARC IP Networks shipments are fully insured and trackable. Once dispatched, you'll receive an email with your tracking number and courier website details. If your item is confirmed lost or damaged by our courier, we'll arrange a replacement in consultation with you.


International Shipping



ARC IP Networks ships to New Zealand. Please note:


  • Import duties and taxes vary by country
  • Buyers are responsible for all customs charges
  • Contact your local customs authority before ordering
  • We'll provide required documentation for smooth customs clearance
  • Buyers cover all shipping costs for returns due to refused duties/taxes


Delivery Requirements


Signature Required


All deliveries must be signed for. If you won't be home, contact our Sales Support team to arrange Authority to Leave. Important: Authority to Leave voids shipping insurance if parcels are lost or stolen.


Delivery Restrictions


We do not deliver to PO Boxes or Parcel Lockers as our couriers cannot access them. Orders sent to these addresses will be returned, incurring redelivery fees.


Shipping Issue Resolution


ARC IP Networks works closely with our shipping partners to resolve any delivery issues quickly and fairly:


  1. Confirmation: We verify expected delivery dates with our shipping partners
  2. Investigation: Issues outside normal timeframes trigger formal investigations
  3. Communication: We keep you updated throughout the resolution process
  4. Resolution: Confirmed lost items are replaced or refunded after investigation completion


Please note: Refunds for lost, missing, or delayed orders cannot be processed until shipping partner investigations are complete. This does not affect your rights under the Australian Consumer Law, and refunds or replacements will be provided where required once loss or damage is confirmed.

Warranty & Faulty Products

ARC IP Networks complies with the Australian Consumer Law (ACL).

If a product is faulty, damaged, not of acceptable quality, or does not perform as advertised, you are entitled to a repair, replacement, or refund in accordance with ACL.

Manufacturer Warranty Returns

For faults developing after 14 days within the warranty period:

  • Contact ARC IP Networks first at info@arcip.com.au or 1300 100 440
  • We will assess the issue and coordinate with manufacturers, authorised service centres, or distributors on your behalf
  • Where required, a manufacturer RMA may be arranged
  • ARC IP Networks manages the return process and next steps

Dead on Arrival (DOA)

Products that arrive faulty or damaged must be reported within 14 days of delivery.

ARC IP Networks will arrange assessment, replacement, or refund as appropriate.

Change of Mind & Non-Faulty Returns

Change-of-mind returns must be requested within 14 days of delivery. For change-of-mind returns, the product must be unused, unopened, in its original packaging, and returned with all accessories and documentation. These conditions apply only to change-of-mind returns and do not limit or exclude your rights under the Australian Consumer Law. Some products are not eligible for change-of-mind returns, including:

  • Ex-demo products
  • Clearance or markdown items
  • Special-order items
  • Products clearly marked “No Change-of-Mind Returns”

Important

This does not affect your rights under Australian Consumer Law.

If a product is faulty, not of acceptable quality, or does not meet advertised specifications, it remains eligible for return regardless of category.

Refunds & Processing Timeframes

  • Approved refunds are processed within 7 business days of receiving returned goods
  • Refunds are issued to the original payment method, unless otherwise agreed
  • Replacement or repair may be offered where appropriate
  • Store credit may be offered only with customer consent

Handling fees and non-returnable service charges may not be refundable where permitted by law.


Restocking Fees

For approved change-of-mind or non-faulty returns, a 15% restocking fee applies.

  • Any applicable restocking fee will be clearly communicated prior to return approval
  • The fee will be deducted from the refund amount
  • Restocking fees do not apply to returns made under the Australian Consumer Law, including faulty, damaged, or misrepresented goods.

Return Shipping Costs

  • Change-of-mind returns: The customer is responsible for return shipping costs.
  • Faulty or defective products: ARC IP Networks covers return shipping under Australian Consumer Law.

Non-Warranty Repairs

For issues not covered by warranty:

  • ARC IP Networks will provide a quote before proceeding
  • Customers are responsible for all shipping and service costs
  • No repairs are undertaken without customer approval

Return Methods

Returns may be made:

  • In-store at ARC IP Networks – 6 George Street, Blackburn VIC 3130
  • Or by shipment as instructed by our support team

Proof of purchase is required for all returns.

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