Do I need a separate DECT base station?

Yes. The CP935W is an endpoint — it requires a Yealink W80B, W90, or compatible DECT base station to register and place calls. Budget for the base separately ($349-$599).

How long does the battery last?

About 24 hours standby, 8 hours talk time. Recharges fully in approximately 3 hours via the USB-C cradle.

Can it work as a USB conference phone for my laptop?

Yes — connect via USB-C and the CP935W acts as a USB audio device for Zoom/Teams on the host PC. Doesn't require the DECT base for this mode.

Why pick the CP935W over the CP925?

Only if you have multiple conference rooms and the phone needs to move between them. For a single fixed room, the CP925 is cheaper, simpler, and doesn't need a separate base station.

Yealink · CP series · wireless DECT

Yealink CP935WBattery-powered DECT conference phone with no cables.

Wireless DECT-based conference phone with built-in rechargeable battery, full 360° pickup, 4-inch touchscreen, designed to be carried between rooms without setup. The CP935W solves the 'we have eight different conference rooms and only buy one phone' problem.

Coverage

Up to 8 people · 360° pickup

Display

4″ color · touchscreen

Connectivity

DECT (via W80/W90 base) + USB

Battery

Rechargeable, ~24h standby / 8h talk

Audio

HD voice · Noise Proof

Power

USB-C charging cradle

$599 one-time

or rent for $24.99/mo — month-to-month, return anytime

Ships pre-configured · free next-business-day for orders $200+

Order a CP935W Rent for $24.99/mo Datasheet (PDF) ↓

✓ Auto-provisioned out of the box ✓ Warranty replacement included with rental ✓ Free shipping on orders $200+

Yealink CP935W conference phone — front view with handset and display — Yealink CP935W

Why the CP935W is on the catalog.

The CP935W is a genuinely unusual product: a fully wireless DECT-based conference phone with a battery. Pair it with a W80B or W90 DECT base station and the phone becomes a roaming endpoint you can carry between rooms, set on the table, and start a call without plugging in anything. For organizations with multiple meeting spaces but only conference-call traffic in one at a time, this consolidates equipment dramatically.

Where it earns its $599: a multi-room facility (law firm with five small meeting rooms, medical office with three exam-room conference setups, training center with rotating spaces) that would otherwise need to either buy a CP920 for each room ($2,000 for four rooms) or live with portable Bluetooth speakers that do not integrate with the SIP system. The CP935W's roaming model handles all of those rooms with one device.

Where the model breaks down: high-traffic dedicated boardrooms. If a single conference room hosts a meeting every hour all day, a wired CP965 or CP925 is more reliable than the wireless CP935W — battery management becomes a daily issue and DECT can be flaky in environments with heavy interference. The CP935W is for the multi-room flexibility use case specifically.

Requires a W80B (multi-cell) or W90 (enterprise multi-cell) DECT base station to operate, sold separately. Existing W76P / W78P bases also work in compatibility mode. For greenfield deployments, plan the base station purchase together.

Full technical specifications.

Audio coverage
People	Up to 8 around a standard table
Pickup pattern	360° omnidirectional
Pickup distance	Approximately 20 feet
Noise reduction	Yealink Noise Proof Technology
Display & interface
Display	4-inch capacitive touchscreen
Battery indicator	On-screen status
Wireless DECT
Standard	DECT 6.0 / CAT-iq 2.0
Range	Up to 50m indoor / 300m outdoor from base station
Required base	W80B, W90, or compatible (W76P/W78P in legacy mode)
Handsets per base	Up to 30+ DECT endpoints per W80B base
Battery
Type	Built-in rechargeable Li-ion
Standby	Approximately 24 hours
Talk time	Approximately 8 hours continuous
Charging	USB-C charging cradle (included)
Connectivity
DECT	Connects via paired base
USB	USB-C (charging + softphone audio)
Bluetooth	Built-in for mobile pairing
Physical
Dimensions	Approximately 275 × 275 × 60 mm
Weight	Approximately 1.3 kg
In the box
Included	CP935W base, charging cradle, USB-C cable, provisioning card
Not included	DECT base station (W80B/W90 sold separately, required)

How it works on voip.army.

Plug the CP935W into PoE and ethernet. About a minute later it has registered to your extension. Same auto-provisioning flow as every other supported phone — no SIP credentials to type, no firmware to chase.

60s

Time from plug-in to first call

Boot, fetch config from our provisioning server, register, ready. About one minute on a normal connection.

Multi-line

SIP accounts on one phone

Multi-line per phone. Each line key has a dual-color LED for status at a glance.

Programmable

Programmable keys

Programmable mapped from the voip.army portal — BLF, paging, parking, transfer destinations.

Per-device onboarding fees

Bringing your own? Send us the MAC, factory-reset, plug in. No charge to add it to the fleet.

802.3af

PoE class

Standard PoE — any 802.3af-compliant switch from the last 15 years powers the phone without an adapter.

Yealink

Auto-provisioning template

Tested against every Yealink firmware release for CP935W. We catch regressions before they reach your fleet.

Need CP935Ws for every desk?

Tell us how many you need and what extensions to map. We ship pre-configured next business day; you plug them in and they work.

Get a quote Start a free trial first

✓ Free shipping on orders $200+ ✓ 30-day hardware return ✓ Pre-configured before shipping