SIP phone · X300 Series
X303G SIP desk phone — four lines with dual Gigabit and PoE
The Gigabit variant of the X303: a 2.4-inch (320×240) colour screen, 4 SIP lines, 6-way conferencing and dual Gigabit ports with integrated PoE.
- Dual Gigabit ports with integrated PoE
- 2.4-inch (320×240) colour screen
- 4 SIP lines
- 6-way audio conference — the organiser can invite up to 5 participants
- Dual-core chip; IPv4 and IPv6
- Desktop or wall-mounted

Gigabit and PoE
This is the variant for a desk that already runs gigabit: two Gigabit ports with integrated PoE, so the phone can sit in line with a PC and be powered from the switch.
Four lines and conferencing
The calling set is unchanged from the base X303: 4 SIP lines, HD audio on G.722 and Opus, and a 6-way audio conference where the organiser invites up to five participants, all on a 2.4-inch (320×240) colour screen with a dual-core chip.
- IPv4 and IPv6
- EHS wireless headset support
- Dual-core chip
- Desktop or wall-mounted
Where it fits on site
Desk PC on the same cable
Gigabit pass-through with PoE keeps the PC at full speed and the phone powered from the switch.
Office that holds conferences
The 6-way conference and colour screen suit a desk that brings several people into a call.
Wall or desk position
Desktop or wall mounting lets the same phone serve a reception counter or a corridor point.
Specifications
Display & calling
| Screen | 2.4-inch (320×240) colour screen |
|---|---|
| SIP lines | 4 |
| Conference | 6-way; the organiser can invite up to 5 participants |
| Codecs | G.722 and Opus |
| Chip | Dual-core |
Network & power
| Ethernet | Dual Gigabit ports |
|---|---|
| PoE | Integrated PoE |
| Wi-Fi / Bluetooth | Not stated for the X303G; Wi-Fi is built in on the X303W |
| Protocols | IPv4, IPv6 |
Deployment
| Headset | EHS wireless headset support |
|---|---|
| Mounting | Desktop / wall-mounted |
| Dimensions, weight, colour, IP rating | Not stated in the source materials |
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
What is the difference between the X303 and the X303G?
Does it support a wireless headset?
How many parties can join a conference?
Is Wi-Fi available on this variant?
Standards referenced
Explore Products
Related products

X303
Four-line X300 Series desk phone with a colour screen and dual-core chip.
- 4 SIP lines
- 2.4-inch colour screen
- Dual megabit ports

X303W
Four-line desk phone with dual-band Wi-Fi built in and PoE.
- 4 SIP lines
- Built-in 2.4G & 5G Wi-Fi
- PoE

X301G
Two-line X300 phone with Gigabit ports and integrated PoE.
- 2 SIP lines
- 2.3-inch dot-matrix
- Dual Gigabit + PoE
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Page author: NEXVIA EngineeringPublished: Last updated: