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Grandstream UCM6304A IP PBX Phone System

Handles up to 1,000 users and 150 simultaneous calls, with 7 voice conference rooms holding up to 120 participants.

  • Up to 1,000 users, 150 simultaneous calls
  • 7 conference rooms (120 participants)
  • 4 FXS and FXO ports
  • 2 USB 3.0 ports + SD card
Ref.: UCM6304A
6 269,00 DHincl. VAT

In stock

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Receive it between Wed 23 Sept and Fri 25 Septfree delivery all over Morocco

Delivery to your address

Receive it between Wed 23 Sept and Fri 25 Septfree delivery all over Morocco

The estimate is refined using actual delivery rounds to your city.

  • Free delivery from 3 000 DH of purchases, all over Morocco.
  • Below that, the same rate in every city for parcels up to 30 kg (delivery to your home or workplace) — the exact amount is shown above, then in the basket.
  • Above 30 kg, the rate follows the parcel's weight. In Casablanca, the flat rate holds up to 120 kg.
  • You are notified by SMS, then called by the courier before your parcel is handed over (delivered by Sapress).
  • Observed delivery time: 1 to 5 working days depending on the city.
Free in-store collection: Casablanca (within 24 h) · Témara (within 48 h)

In-store collection — free

Casablanca store
We bring it to the store within 24 h
We call you as soon as it arrives in store.

Résidence Manoir des Roses, Lot. 18, Boulevard El Hachmi El Filali, Rond-point Bachkou, Casablanca

Opening hours

  • Mon–Fri: 10am – 7pm
  • Sat: 10am – 2pm
  • Closed on Sundays and public holidays

Payment on site: cash, bank card via terminal, certified cheque.

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Temara pickup point
We bring it to the store within 48 h
We call you as soon as it arrives in store.

Boulevard Hassan II, Résidence Les Perles de Témara, Immeuble 5, appartement 2, Témara

Opening hours

  • Mon–Fri: 8.30am – 1pm / 2pm – 6pm
  • Sat: 8.30am – 12.30pm
  • Closed on Sundays and public holidays

Payment on site: cash, bank card via terminal, certified cheque.

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1 year warranty — free repair in Morocco if it breaks down during the warranty period

1 year manufacturer's warranty

This product is covered for 1 year by a manufacturer's warranty (the brand's official warranty). Your iris.ma invoice serves as the warranty document: keep it safe.

A problem with your product? Don't worry: contact us by phone, WhatsApp or e-mail. Depending on the brand, we direct you either straight to the repairer appointed by the brand to fix your product, or to us — and we take care of the rest.

  • If a repair is possible, it is carried out free of charge.
  • If the product cannot be repaired, the brand offers an exchange for another product.
  • If no product is available, a refund is issued as soon as the brand confirms it.

Faulty straight out of the box? Some brands offer an immediate exchange, others a repair. Contact us to find out what applies to your product.

The warranty covers breakdowns occurring under normal use, as defined by the brand's terms. Product breakage (drop, impact, liquid…) is not covered, nor are certain consumable parts.

New, never opened — our commitment

All our products are new, delivered in their sealed original packaging.

We commit to never sending you a product that has been opened, unboxed or returned by another customer — even one “just opened for checking”.

Any doubt on delivery (damaged box, seal already opened)? Point it out to the courier or contact us immediately: we take the product back and send you another one.

Sales invoice

Every order comes with its sales invoice, included with the parcel (handed over in person for a store collection).

Ordering for a company? Using the details you give at checkout (company name and ICE), the invoice is issued in your company's name, with its ICE.

Need a quote? Request a free quote — reply within 24 working hours.

100% secure payment: Bank transfer · Bank card · Cash on delivery (deposit of 940 DH by card or bank transfer) · Certified cheque

Accepted payment methods

Bank transfer

Simply transfer the amount shown to account 007 826 0002684000000426 89 — SGM2I, Attijariwafa bank. The rest (the reference to quote, sending us the proof, tracking) is explained right after confirmation and by email. An instant transfer is recommended: it saves you 24 hours on the delivery time.

Bank card

Your everyday Moroccan bank card is enough — Visa, Mastercard or CMI, no special card required. Foreign cards are accepted too. Secure payment by Attijari Payment.

Cash on delivery (deposit of 940 DH by card or bank transfer)

Pay 940 MAD up front by card, then 5 329 MAD in cash on delivery. The deposit is not refunded if you cancel your order.

Certified cheque

Certified cheque payable to “sgm2i”. Have your bank certify the cheque, then send us a copy on WhatsApp (+212 6 64 10 46 24) or to service.client@iris.ma — we dispatch as soon as we receive it.

Cash at a bank branch

Pay the cash in at any of the 3,400 Attijariwafa Bank branches in Morocco, to the SGM2I account no. 0268 D 000 000 426. You do not need an account there: your ID and the cash are enough.

The methods offered depend on the order total and the carrier — checkout shows the final list.

Google reviews4.7(553 reviews)
Manufacturer's datasheetView the PDF · 682 Ko — downloadable

Product overview

Boost your communications with the Grandstream UCM6304A IP PBX phone system, designed to handle up to 1,000 users and 150 concurrent calls. Ideal for businesses, it offers 7 voice conference rooms for up to 120 participants. With 4 FXS and FXO ports, 2 USB 3.0 ports and an SD card slot, it provides excellent connectivity. Its built-in NAT router and PoE+ ports deliver superior network performance, all with flexible rack or desk mounting.

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Technical specifications

Technical specifications
Operating systemAsterisk 16
Display320 x 240 colour touch LCD, with shortcut keys and scroll bar
Dimensions (W x D x H)270 x 175 x 36 mm (L x W x H axes as published by the manufacturer)
Voice codecsOpus, G.711 A-law/U-law, G.722, G.722.1, G.722.1C, G.723.1 5.3K/6.3K, G.726-32, G.729A/B, iLBC, GSM
Fax over IPT.38 relay, with fax-to-email
Video codecsNone (UCM6300 audio series)
VoIP protocolsSIP
Call managementCall hold, call forwarding, call transfer, call waiting, caller ID, call recording, call history, ringtone, IVR (interactive voice response), music on hold, call routes, DID, DOD, DND, DISA, ring group, simultaneous ringing, time schedule, PIN groups, call queue, pickup group, paging/intercom, voicemail, wake-up call, SCA, BLF, voicemail to email, fax to email, speed dial, callback, dial by name, emergency call, temporary forwarding, blacklist/whitelist, audio meeting, event list, feature codes, busy camp-on, call completion on busy, voice control
Caller IDBellcore/Telcordia, ETSI-FSK, ETSI-DTMF, SIN 227 - BT, NTT
Local conferencing7 meeting rooms and up to 120 participants
Supported network protocolsTCP/UDP/IP, RTP/RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, STUN, SRTP, TLS, LDAP, HDLC, HDLC-ETH, PPP, frame relay, IPv6, OpenVPN
Technical specifications (continued)
Network interfacesThree auto-sensing Gigabit Ethernet ports (switched, routed or dual mode) with PoE+
Telephony interfaces4 RJ11 FXS ports for analogue phones and 4 RJ11 FXO ports for PSTN lines, all with emergency lifeline in case of power failure
Concurrent calls150 concurrent G.711 calls, 120 concurrent SRTP calls
Supported users1,000 users
Weight775 g
SecuritySRTP, TLS, HTTPS, SSH, 802.1X, secure boot, unique certificate and random default password
Power supply100-240 V AC 50/60 Hz to 12 V DC / 1.5 A power adapter
MountingWall and desktop
Management softwareGDMS (Grandstream Device Management System), cloud-based management and zero-touch provisioning system
Connectivity2 USB 3.0 ports, 1 SD card interface
Warranty1 year

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Frequently asked questions about this product

How many users does the Grandstream UCM6304A support?
Up to 1,000 users and 150 concurrent calls. These are two separate figures: the first counts the registered extensions, the second the calls active at the same time — and it is the latter that really determines the size of the phone system.
Does the Grandstream UCM6304A support conference calls?
Yes: 7 conference rooms, which can bring together 120 participants in total. These rooms are hosted by the PBX itself, with no external service and no subscription to a video conferencing provider.
Can traditional phone lines be connected to the Grandstream UCM6304A?
Yes: it has 4 FXS ports and 4 FXO ports. The FXO ports take the operator's analogue phone lines; the FXS ports power conventional analogue devices — a fax machine, a lift telephone.
Can the Grandstream UCM6304A record calls locally?
It has two USB 3.0 ports and an SD card slot. These store recordings, voicemail messages and configuration backups, with no additional storage server.
Does the Grandstream UCM6304A power the phones on the network?
Yes, it has PoE+ ports, as well as a built-in NAT router. In a small business, this saves adding a PoE switch and a router: the PBX handles all three roles.
How is the Grandstream UCM6304A installed?
In a 19-inch rack or on a desk — mounting is flexible. That is a practical point in a small business, where the PBX often ends up on a shelf for lack of a server room.
Is the Grandstream UCM6304A PBX new and under warranty?
New, reference UCM6304A, in original Grandstream packaging. The invoice serves as the warranty document for 1 year. Keep it: it is the document you will be asked for if you make a claim.

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