Compare desk phones
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Search, shortlist two to four phones, then compare specifications and source evidence.
Compare essentials or all specifications. Unknown values stay visible when showing differences.
How to read this comparison
SIP accounts are registrations, not simultaneous calls. Programmable keys count assignable positions across pages, not just physical buttons. Conference capacity and encryption depend on firmware and configuration.
No is an explicit negative; Unknown means unresolved evidence; Not applicable means the field does not apply. An optional adapter is an extra accessory. Open Evidence for model scope, source sections and qualifications.
Differences keep your selected requirements and unknowns visible. Equal headline values can remain when their evidence notes differ.
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| Specification | Fanvil X5U 15 of 23 specifications recorded Lifecycle: Unknown Record reviewed: 2026-09-11 Selected requirements: 2 met · 0 not met · 0 unknown | AudioCodes 445HD 9 of 23 specifications recorded Lifecycle: Unknown Record reviewed: 2026-09-29 Selected requirements: 2 met · 0 not met · 0 unknown |
|---|---|---|
| Calling | ||
| SIP accounts / linesDifference | 16EvidenceManufacturer specification Fanvil X5U datasheetSection: Generic / Highlights — SIP lines Review note: Specifications follow the currently linked datasheet. Earlier hardware or firmware revisions may differ. Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| Programmable keysDifference | 30EvidenceManufacturer specification Fanvil X5U datasheetSection: Highlights — assignable DSS capacity Review note: Assignable DSS positions; this count can include multiple pages of keys. Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | 6EvidenceManufacturer specification 445HD IP PhoneSection: 445HD Features > 6 programmable multi-function keys; excludes 12 sidecar speed-dial keys Evidence reviewed: 2026-09-29 |
| Local conference participantsDifference | 6EvidenceManufacturer specification Fanvil X5U datasheetSection: Highlights / Call Features — local audio conference Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| Display | ||
| Display sizeDifference | 3.5 inEvidenceManufacturer specification Fanvil X5U datasheetSection: Physical Specifications — main LCD Review note: Display size and resolution describe the main screen; this model also has separate DSS displays. Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | 4.3 inEvidenceManufacturer specification 445HD IP PhoneSection: 445HD Features > Graphic 4.3-inch colour LCD screen Evidence reviewed: 2026-09-29 |
| Display resolutionDifference | 480 x 320EvidenceManufacturer specification Fanvil X5U datasheetSection: Physical Specifications — main LCD Review note: Display size and resolution describe the main screen; this model also has separate DSS displays. Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | 480 x 272EvidenceManufacturer specification 445HD IP PhoneSection: 445HD Features > Graphic 4.3-inch colour LCD screen (480x272) Evidence reviewed: 2026-09-29 |
| Colour display | YesEvidenceManufacturer specification Fanvil X5U datasheetSection: Physical Specifications — colour screen Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | YesEvidenceManufacturer specification 445HD IP PhoneSection: 445HD Features > Graphic colour LCD screen Evidence reviewed: 2026-09-29 |
| TouchscreenDifference | Unknown | Unknown |
| Connectivity | ||
| EthernetRequired: Gigabit | Meets requirementGigabitEvidenceManufacturer specification Fanvil X5U datasheetSection: Networking — physical Ethernet Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Meets requirementGigabitEvidenceManufacturer specification 445HD IP PhoneSection: 445HD Features > GbE Support Evidence reviewed: 2026-09-29 |
| Power over EthernetRequired: Yes | Meets requirementYesEvidenceManufacturer specification Fanvil X5U datasheetSection: Generic / model comparison / power supply Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Meets requirementYesEvidenceManufacturer specification 445HD IP PhoneSection: IP Phone Series Highlights > PoE or external power supply Evidence reviewed: 2026-09-29 |
| Wi-FiDifference | Optional adapterEvidenceManufacturer specification Fanvil X5U datasheetSection: Highlights / Phone Features — Wi-Fi Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| Wi-Fi standardDifference | Unknown | Unknown |
| BluetoothDifference | Built inEvidenceManufacturer specification Fanvil X5U datasheetSection: Highlights / Phone Features — Bluetooth Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| Bluetooth versionDifference | 4.2EvidenceManufacturer specification Fanvil X5U datasheetSection: Highlights / Phone Features — Bluetooth version Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| USB portsDifference | 1EvidenceManufacturer specification Fanvil X5U datasheetSection: Physical Specifications — USB 2.0 port Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| Accessories | ||
| Headset interfacesDifference | Unknown | USBEvidenceManufacturer specification 445HD IP PhoneSection: 445HD Features > USB headset support; other connector paths not assumed Evidence reviewed: 2026-09-29 |
| Expansion modulesDifference | Unknown | Unknown |
| Physical | ||
| Wall mountableDifference | Unknown | Unknown |
| Audio | ||
| HD voice | YesEvidenceManufacturer specification Fanvil X5U datasheetSection: Audio / Highlights — HD voice Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | YesEvidenceManufacturer specification 445HD IP PhoneSection: 445HD hero features > HD voice with SILK vocoder Evidence reviewed: 2026-09-29 |
| Full-duplex speakerphoneDifference | Unknown | YesEvidenceManufacturer specification 445HD IP PhoneSection: IP Phone Series Highlights > Full duplex speaker phone Evidence reviewed: 2026-09-29 |
| Audio codecsDifference | Unknown | Unknown |
| Software | ||
| Operating systemDifference | Unknown | Unknown |
| Security | ||
| TLS signallingDifference | YesEvidenceManufacturer specification Fanvil X5U datasheetSection: Protocols — SIP over TLS Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
| SRTP media encryptionDifference | YesEvidenceManufacturer specification Fanvil X5U datasheetSection: Protocols — SRTP Evidence reviewed: 2026-09-11 Applies to: Fanvil X5U; manufacturer datasheet linked from the reviewed product page. | Unknown |
Compatible phone systems
The indicator shows whether a compatible configuration path is documented, or whether the result still needs verification. A not-listed result does not mean technically incompatible. It does not replace checking the provider firmware branch, tenant, network and feature requirements.
3CX V20
Listed firmware applies to 3CX V20. Cloud or remote phones need a router phone or SBC. Recheck the current provider release before deployment.
Not reviewed
Not reviewed
Zoom Phone
Yealink phones require Zoom-specific firmware. A certification entry does not confirm every feature or regional deployment.
Not reviewed
Not reviewed
Microsoft Teams SIP Gateway
This is SIP Gateway compatibility, not native Teams-phone certification. Use the gateway provisioning path and approved firmware; confirm tenant licensing, policies and network requirements.
Not reviewed
Not reviewed
Specifications may vary by region, hardware revision, firmware, or optional accessory. A review date or recorded field is not a compatibility guarantee. Follow each product’s official sources before purchasing or deploying.
103 phones found
Unknown means not yet verified, not No.
Before choosing a phone
Treat this comparison as a research aid, not a compatibility or purchasing guarantee. Confirm regional variants, firmware support, platform certification, power requirements, accessories, lifecycle status, and current availability with the manufacturer and your phone-system provider.