We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black VoIP desk phone with 3.5 inch colour screen and handset

SNOM TECHNOLOGY

SNOM TECHNOLOGY SNO-821-BK VoIP Phone 3.5" 320x240 Black

SKU CH-GRMJ-NKP7T MPN SNO-821-BK

A 3.5 inch colour VoIP desk phone with dual Gigabit ports, 250-contact directory and five-way conferencing

  • TypeTelephone
  • SecurityHTTPS (server/client) Transport Layer Security (TLS) SRTP (R
  • Ports2 x IEEE 802.3/1 Gigabit Switch USB Type A
  • Display3.5", 320 x 240 pixels, High-resolution TFT color display
  • LEDsLED indication for missed calls and new messages
  • Power5V DC Power over Ethernet: IEEE 802.3af, Class 2
  • 5" TFT colour display at 320 x 240 for clear call information
  • Dual Gigabit Ethernet ports with integrated switch for fast network throughput
  • USB Type A host interface supports peripherals and WLAN adapter
  • Five-way on-phone conferencing bridge for multi-party calls
  • 250-entry directory with import and export for contact management

Business VoIP handset with 3.5" colour display

The SNOM 821-BK is a desk phone built for SIP environments that need a 3.5 inch TFT colour screen at 320 x 240 pixels. It targets offices using hosted PBX or on-premise SIP servers and users who want a dedicated device rather than a softphone. Two Gigabit Ethernet ports allow the phone and a PC to share one wall socket. Power over Ethernet Class 2 is supported alongside the bundled 5 V DC supply.

Desk-ready installation with dual Ethernet

Plug the LAN port into the network and the PC port into a computer to pass through connectivity without an extra switch port. The handset and optional headset both use RJ-4P4C connectors that click into labelled sockets on the rear. A USB Type A port accepts the vendor’s WLAN adapter for 802.11b/g/n wireless if cabling is impractical. The 37 keys and 9 LEDs are labelled clearly, but the menu depth can feel dense for first-time SIP users; provisioning via HTTPS/TLS or SRTP reduces manual entry errors.

Verify SIP server compatibility and cabling

Confirm that the PBX supports the listed codecs: G.711, G.722, G.723.1, G.726, G.729AB, GSM 6.10 and iLBC. The phone directory holds 250 entries and supports import or export for bulk updates. Five-way conferencing runs on the device itself, so no external bridge is required. Buyers who need more than two Ethernet ports, a larger touchscreen, or Bluetooth headset pairing should look at other models.

Highlights

  • 5" TFT colour display at 320 x 240 for clear call information
  • Dual Gigabit Ethernet ports with integrated switch for fast network throughput
  • USB Type A host interface supports peripherals and WLAN adapter
  • Five-way on-phone conferencing bridge for multi-party calls
  • 250-entry directory with import and export for contact management

Specifications

Brandsnom
ModelSNO-821-BK
TypeTelephone
SecurityHTTPS (server/client)
Transport Layer Security (TLS)
SRTP (RFC 3711), SIPS, RTCP, VLAN (IEEE 802.1X)
LLDP-MED
Ports2 x IEEE 802.3/1 Gigabit Switch
USB Type A
Display3.5", 320 x 240 pixels, High-resolution TFT color display
LEDsLED indication for missed calls and new messages
Power5V DC
Power over Ethernet: IEEE 802.3af, Class 2
WeightWeight, with footstand: approx. 900g
Without footstand: approx. 670g
SpecificationsColor: Black
General:
Ethernet: 2 x IEEE 802.3/1 Gigabit Switch
1 x LAN, 1 x PC: RJ45 (Ethernet)
Handset: RJ-4P4C connector
Headset: RJ-4P4C connector
1 x USB Type A, 1 x Type B
User Interface:
37 keys, 9 LEDs
4 freely programmable and
16 customizable function keys
12 virtual keys
Comfortable and intuitive menu structure
Incoming call indication via LED
Caller identification on display
LED indication for missed calls and new messages
Directory (up to 1000 entries)
Import/export of directory
Speed dial
Local dial plan
Lists of missed, received, and dialed calls (250 entries each)
Indi
FeaturesComfortable and intuitive menu structure
5-way conferencing (bridge on phone)
Caller identification on display Directory (250 entries)
Import/export of directory/phonebook
Speed dial
Local dial plan
Codecs: G.711, G.729A, G.723.1, G.722, G.726, GSM 6.10 (Full rate)
Lists of missed, received, and dialed calls (100 entries each)
Indication of calls on hold
Clock with automatic daylight-saving time, call timer
Call blocking (deny list)
Handling of up to 12 calls simultaneously.
Shipping weight2.49 kg
Package size165 × 127 × 121 mm

Questions about this item

How can I confirm the SNO-821-BK is working after setup?

Make a test call and verify two-way audio through the handset or headset. Check that the 3.5" 320x240 display shows caller ID and that the missed-call LED lights when a call goes unanswered.

What comes in the box with the SNO-821-BK and what must I buy separately?

The phone, footstand, handset with RJ-4P4C cord, Ethernet cable and 5 V DC power supply are included. A headset with RJ-4P4C plug and a USB Wi-Fi adapter for 802.11b/g/n are optional extras.

Which version of the SNO-821-BK should I choose for my deployment?

The SNO-821-BK is a single black model with a 3.5" colour display, dual Gigabit ports, USB 2.0 host and 250-entry directory. There are no alternative capacities or colours listed.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.