SIP phone · XU Series
X4U SIP desk phone — 12 lines with a 2.4-inch side key screen
A 2.8-inch (320×240) main screen with a 2.4-inch (320×240) side screen, 12 SIP lines, 30 DSS keys and three line keys with LEDs, on dual Gigabit ports with PoE.
- 2.8-inch (320×240) main screen with a 2.4-inch (320×240) side screen
- 12 SIP lines
- 30 DSS keys plus 3 line keys with LEDs
- HD audio with wideband G.722; 6-way conference
- Dual Gigabit ports with integrated PoE
- IPv4 and IPv6, with Bluetooth and Wi-Fi added through USB dongles
Side screen for the key field
The X4U keeps the main screen at 2.8-inch (320×240) and puts the key field on a 2.4-inch (320×240) side screen: 30 DSS keys and three LED line keys.
Audio and conference
The stated codec is wideband G.722 — Opus is not listed for this model. A 6-way conference runs on the phone, and EHS wireless headset support is stated.
Gigabit, PoE and wireless dongles
Two Gigabit ports with integrated PoE carry power and data, and IPv4 and IPv6 are both supported.
Wireless is added rather than built in: Bluetooth through a USB dongle and Wi-Fi through a Wi-Fi dongle.
- Dual Gigabit ports with integrated PoE
- Bluetooth via USB dongle; Wi-Fi via Wi-Fi dongle
- Desktop or wall-mounted
- An operating system, dimensions, weight, colour and IP rating are not stated in the source materials
Where it fits on site
Office desk with several numbers
Twelve lines and 30 side-screen keys cover a desk that answers for a team.
Small contact group
BLF fields on the side screen show who is free without an extra console.
Retail or service counter
A compact main screen and a key screen that stays on the counter.
Specifications
Display & video
| Main screen | 2.8-inch (320×240) colour screen |
|---|---|
| Side screen | 2.4-inch (320×240) colour screen |
| Video | Not stated in the source materials |
| Operating system | Not stated in the source materials |
Calling & audio
| SIP lines | 12 |
|---|---|
| DSS keys | 30 |
| Line keys | 3, with LEDs |
| Conference | 6-way |
| Codecs | G.722 (Opus not stated for this model) |
Network & wireless
| Ethernet | Dual Gigabit ports |
|---|---|
| PoE | Integrated PoE |
| Protocols | IPv4, IPv6 |
| Bluetooth | Via USB dongle |
| Wi-Fi | Via Wi-Fi dongle |
| Mounting | Desktop / wall-mounted |
iSpecifications are taken from the product literature supplied with the range. Variant availability and the final feature set are confirmed on the quotation.
Choosing between options
| Model | Specifications |
|---|---|
| V50G | 2.3-inch mono screen · Backlit display · Dual Gigabit + PoE · Wall-mount only |
| V50P | 2.3-inch mono screen · PoE support · 6-way conference · Wall-mount only |
| V60G | 2.4-inch colour screen · 6 DSS keys · Dual Gigabit + PoE · Wall-mount only |
| V60W | 2.4-inch colour screen · 6 DSS keys · Wi-Fi 6 + BT 5.4 · Wall-mount only |
| V61G | 2.4-inch colour LCD · 4 SIP lines · 12 DSS keys · Dual Gigabit + PoE |
| V61W | 2.4-inch colour LCD · 4 SIP lines · Wi-Fi 6 + BT 5.4 · Dual Gigabit + PoE |
| V62 | V Series desk phone · Spec list on request · Confirm on quotation · SIP extension |
| V62G | 2.8-inch colour screen · 12 SIP lines · 21 DSS keys · Dual Gigabit + PoE |
| V62W | 2.8-inch colour screen · 12 SIP lines · Wi-Fi 6 + BT 5.4 · Dual Gigabit + PoE |
| V63 | 2.8-inch colour screen · 6 SIP lines · 21 DSS keys · Dual Gigabit + PoE |
| V64 | 3.5-inch colour LCD · 12 SIP lines · 21 DSS keys · Dual Gigabit + PoE |
| V65 | 4.3-inch screen · 20 SIP lines · 45 DSS keys · Wi-Fi + Bluetooth 4.2 |
| V66 | 7-inch touch screen · 20 SIP lines · 116 DSS keys · Wi-Fi 6 + Bluetooth 5.4 |
| V67 | 7-inch touch screen · 20 SIP lines · 116 DSS keys · Built-in 5 MP camera |
| X2P | 2 SIP lines · 2.8-inch colour screen · RJ9 + 3.5 mm headset · Pedal switch ready |
| X3U | 6 SIP lines · 2.8-inch colour screen · 3-way conference · Gigabit + PoE |
| X4U | 12 SIP lines · 2.8-inch + 2.4-inch · 30 DSS keys · Gigabit + PoE |
| X5U | 16 SIP lines · 3.5-inch + 2.4-inch · 30 DSS keys · 4 LED line keys |
| X6U | 20 SIP lines · 4.3-inch + 2 side screens · 60 DSS keys · 5 LED line keys |
| X7A | 7-inch touch screen · Android 9.0 · 20 SIP lines · 112 DSS keys |
| X7C | 5-inch colour screen · 20 SIP lines · 60 DSS keys · SIP hotspot |
| X210 | 4.3-inch + 2 × 3.5-inch · 20 SIP lines · 106 DSS keys · SIP hotspot |
| X210i | Paging console · 20 SIP lines · 106 DSS keys · Gooseneck microphone |
| X301 | 2 SIP lines · 2.3-inch dot-matrix · Dual megabit ports · 6-way conference |
| X301G | 2 SIP lines · 2.3-inch dot-matrix · Dual Gigabit + PoE · 6-way conference |
| X301W | 2 SIP lines · Built-in 2.4G & 5G Wi-Fi · 2.3-inch dot-matrix · 6-way conference |
| X303 | 4 SIP lines · 2.4-inch colour screen · Dual megabit ports · 6-way conference |
| X303G | 4 SIP lines · 2.4-inch colour screen · Dual Gigabit + PoE · 6-way conference |
| X303W | 4 SIP lines · Built-in 2.4G & 5G Wi-Fi · PoE · 6-way conference |
Compatibility boundaries
This model uses standard SIP and the interfaces listed in the specification table. Confirm the PBX, SIP provider or platform against those interface notes before the order; where the documentation does not state a value, the table records it as not stated rather than estimating. PoE, analog port variants, power options and card compatibility are fixed at order time.
Handover, spares and support
Extension plan, provisioning and interface language can be prepared before dispatch. Remote support continues after handover. Spare-part, warranty and service terms are confirmed in the quotation for the models and quantity ordered, so they are not printed as a single figure here.
Where it sits in the system
Frequently asked questions
Does the X4U support Opus?
How many lines and keys?
Is Bluetooth built in?
Does it support IPv6?
Standards referenced
Explore Products
Related products
X3U
Six-line XU Series desk phone with Gigabit PoE and IPv6.
- 6 SIP lines
- 2.8-inch colour screen
- 3-way conference
X5U
Sixteen-line XU Series desk phone with a main screen and a side key screen.
- 16 SIP lines
- 3.5-inch + 2.4-inch
- 30 DSS keys
V64
Compact V Series desk phone with dual Gigabit, PoE and built-in wireless.
- 3.5-inch colour LCD
- 12 SIP lines
- 21 DSS keys
Planning an IP telephony project?
Send us the site type, the number of extensions or rooms and the areas to cover — we will come back with a configuration and quotation.
Send the site details
Six facts build a configuration: site type, extensions or rooms, simultaneous calls, areas to cover, existing lines and the documents you already hold. Send as many as you know — nothing has to be final before the first reply.
- Reply within one working day
- Configuration + quotation for your site
- Your details are used only to answer this inquiry
Page author: NEXVIA EngineeringPublished: Last updated: