The Top 10 Best Cordless Office Phones

best cordless office phones

By Aimee Bradshaw | Writer and researcher | Updated: January 25 2021

What are best cordless office phones? We review 10 of the best cordless phones from the leading brands in the industry

In today's working world, flexibility is key. Working remotely from your own home office definitely affords you (and your team) that flexibility – but only as much as the tools you use will allow. Buying cordless office phones is a choice you can make to boost that flexibility and mobility.

Importantly for remote workers, a cordless office phone offers the same essential call management features as traditional corded phones, such as call forwarding and conference calling. But what makes them even better is the fact that different models – with different functions – are available for different office or industrial environments, including working from home.

To evaluate and select the best cordless phones for your office (home-based or otherwise), we compared a variety of models on sound quality, battery life, range, usability and features, and costs. On this page, we'll rate and review the models that come out on top, helping you choose the best of the best for you or your team.

Office cordless phones

The 10 Best Cordless Phones: Our Reviews

We've delved into the US office phones market, comparing, assessing, and ultimately handpicking the best cordless options for you and your employees. Our favorites are:

Cordless phone modelCost rangeOur ratingOur review
Panasonic KX-TGP500Low costJump to review
Avaya 3645High costJump to review
AT&T TL92271Low costJump to review
Mitel MiVoice 622dMid costJump to review
Panasonic KX-UDT131High costJump to review
Cisco 7925GMid-high costJump to review
Avaya 6120 IPHigh costJump to review
Vtech LS6475-3Low costJump to review
Mitel MiVoice 632dHigh costJump to review
AT&T SynapseLow costJump to review

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Panasonic KX-TGP500 SIP DECT Phone System

The Panasonic KX-TGP500 SECT Phone System is suitable for small office and branch office solutions. It includes a music-on-hold answering service and new messages display on the handset.

Overall Rating :

One of the system’s most worthy features is the HD wideband audio with high definition sound performance. This means the phone can cut through the office noise for smooth conversation. With easy web configuration and a large, backlit LCD display, setting up up to six handsets shouldn’t be a problem.

Key features

  • 3-line business phone
  • Call transfer
  • Local 3-way conference
  • 1,000 foot range on each handset
  • Full duplex hands-free speakerphone
  • Registers up to 8 DID numbers
Price point: Low cost

Avaya 3645 IP Wireless Handset

The Avaya 3645P Wireless Handset is a professional-level IEEE 802.11a/b/g wireless device suitable for industrial environments. Features such as push-to-talk capability eliminate the need for two-way radios, and there’s a larger earpiece that reduces background noise.

Overall Rating :

Thanks to the phone’s back-lit keypad and large display, those looking for ease of use should check out The Avaya 3645P. It offers a built-in speakerphone, headset compatibility, and extended battery-life options, which boost efficiency and extend accessibility. These handsets are engineered for demanding environments that require a high level of collaboration. They are small enough to be highly mobile, yet rugged enough for heavy use.

Key features

  • 128 x 96 backlit display with icons and line-status indicators
  • Standard battery – 4 hours talk time, 80 hours standby time
  • Headset jack
  • 802.11a, 802.11b, and 802.11g compatible
  • Dust, shock and liquid damage resistant
  • Audible and vibration alerts
Price point: High cost

AT&T TL92271 DECT 6.0 Cordless Phone Connect To Cell

The AT&T TL92271 DECT 6.0 Cordless Phone is a clever bunny. It features Connect to CELL™ technology enabling users to make and receive calls on cell phone plans, while utilizing the facilities of a wireless office phone system.

Overall Rating :

If you don’t have too much to spend on your phone system, this budget option from AT&T will do the job nicely. In addition to answering machine facilities, The AT&T TL92271 phone features HD audio, call transfer, on-hook dialing and distinctive ring tones for the office line and cellular line.

Key features

  • Stores up to 6,000 directory entries from up to 4 different cell phones
  • Caller ID announce
  • Noise-filtering technology
  • Long-range coverage and clarity
  • Push-to-talk capability
  • HD audio with equalizer for customized audio
Price point: Low cost

Mitel MiVoice 622d DECT Phone

The Mitel MiVoice 622d DECT Phone has a large illuminated 2“ graphic colour display and 8 programmable keys for quick access to favorite functions. This phone can be supported by a PBX for messaging or alert applications.

Overall Rating :

As a mid range phone the Mitel MiVoice is a good option. It offers more on the feature front than low cost phones. Most notably the PBX support and the ambient noise filter to cut through a busy working environment. It’s also worth pointing out the Mitel MiVoice 622d handset is equipped with a Bluetooth® interface for cordless headsets.

Key features

  • 2 Colour TFT display
  • VIP phonebook with 6 entries
  • Ambient noise filter for loud environments
  • Intelligent battery management
  • 3 color multi-purpose LED
  • Support for message and alerting applications
Price point: Mid cost

Panasonic KX-UDT131 DECT Handset

The Panasonic KX-UDT131 DECT Handset is a tough number. The model is suitable for office or industrial environments and it’s protected against drops on concrete floors and dust from diesel engines. The handset features high-quality wideband audio with background noise reduction and full-duplex hands-free operation, even with a gloved hand.

Overall Rating :

When a phone offers voice processing technology and enhanced radio systems to ensure call quality, you can expect to pay a touch more. Also factor in the fact that the model has built-in Bluetooth support allowing a wireless headset use, and you know you’re investing in a high spec system.

The phone is platform independent and can work with any SIP compliant service for high-quality wireless communication in any environment.

Key features

  • 1.8” color TFT display
  • Noise reduction
  • Hands-free speaker phone (full duplex)
  • Vibration alert
  • 13 hour (narrow band)/10 hour (wideband) talk time
  • 200 hour standby time
Price point: High cost

Cisco Unified Wireless IP Phone 7925G

Can’t quite justify a high cost system? This offering from Cisco could be the one for you. The Cisco Unified Wireless IP Phone 7925G has a ruggedized industrial design suitable for users working in demanding conditions as well as general office environments. It supports a wide range of features for enhanced voice communications, including built-in full-duplex wideband audio speakerphones and high-fidelity voice.

Overall Rating :

The Cisco 7925G phone is ideal for heavy duty working environments. It meets military standards for shock resistance, which means it’s hermetically sealed to protect it against dust, liquids and moist wipes. And let’s not forget a rubber casing to shield the phone from damage caused by drops and shocks.

Key features

  • Built-in speakerphone for hands-free operation
  • IP54 rated for protection against dust and splashing water
  • IEEE 802.11 a/b/g radio
  • Bluetooth 2.0 support with Enhanced Data Rate (EDR)
  • Long battery life (up to 240 hours of standby time or 13 hours of talk time)
  • Support for a wide range of applications through XML
Price point: Mid-high cost

Avaya 6120 IP Wireless Handset

This is an entry-level phone in the IP world. It’s optimized for use in a general office, and in financial and hospitality industries. Employees can make and receive calls, place calls on hold, set up conference calls, call back unanswered calls and check for messages – and that’s just for starters.

Overall Rating :

The Avaya 6120 Wireless Handset is perfect for mobile communication in the workplace. It manages to be lightweight and rugged at the same time. There’s a backlit keypad and large display, and it’s resistant to dust, shock, and liquid damage. Extended battery-life options increase accessibility for 24-hour operation.

Key features

  • 128 x 96 backlit display with icons and line-status indicators
  • 802.11a, 802.11b, and 802.11g compatible
  • Speakerphone
  • Optional extended battery up to 8 hours talk time, 160 hours standby time
  • Headset jack
  • Audible and vibration alerts
Price point: High cost

Vtech LS6475-3 8 Handset Answering System

For a low cost phone, the Vtech LS6475-3 8 Handset Answering System is a featureful system. It supports hands-free landline and/or cellular conversations anywhere in the office. The phone also offers up HD audio and Caller ID Announce to simplify call screening and Push-to-talk.

Overall Rating :

If headsets are an essential part of your business day to day, the Vtech LS6475-3 could be the phone system for you. It includes a headset that provides the same interference-free, superior-quality voice, sound and range as a traditional DECT 6.0 cordless handset.

Key features

  • Handset speakerphone
  • Caller ID Announce
  • Up to 14 minutes of recording time
  • Expandable up to 12 devices with only one phone jack
  • Voicemail waiting indicator
  • Conference between an outside line and up to 4 cordless handsets
Price point: Low cost

Mitel MiVoice 632d DECT Phone

The Mitel MiVoice 632d DECT Phone is a ruggedized DECT business phone that complies with the industrial standard IP 65. It’s not just water protected. It’s jet water protected. And with the added dust protection, it can be used outside or in rough industrial environments.

Overall Rating :

Crank the volume up in the office because the The Mitel MiVoice 632d DECT can handle it, thanks to the ambient noise filter. It offers up a clear 2-color TFT display. The phone includes an additional emergency call key for security professionals or hospital and care facilities.

Key features

  • 2-color TFT display
  • Intelligent battery management
  • 3 colour multi-purpose LED
  • Ambient noise filter for loud environments
  • Optional microSD card to save local device data
  • Emergency call key for security, hospital and care environments
Price point: High cost

AT&T Synapse Cordless Handset

Need a phone that can handle a complex telecoms system? Cue the AT&T Synapse™ Cordless Handset. This offering is part of the Synapse Business Phone System, which is suitable for businesses that need up to 50 extensions with 1 to 16 outside lines.

Overall Rating :

The AT&T Synapse handset supports most functions of an equivalent Synapse deskphone, including a fully integrated digital answering system and hands-free speakerphone. It offers a large backlit display and personalization options such as selectable ringtones. The handset pairs with AT&T DECT Deskphones, however it will not work as standalone DECT phone.

Key features

  • Duplicates most functions of the SB67030 Deskset
  • Large backlit display
  • Hands-free speakerphone
  • Headset compatible (2.5 mm jack)
Price point: Low cost

Cordless Phone Buyer's Guide

Cordless Phone Costs

So, what can you expect to pay for when you upgrade to a cordless phone system?

  • The handsets (in other words, phones) themselves
  • The base station
  • Installation of a phone line if required
  • Repeaters to boost the wireless signal (if necessary)

For frequent office use, you should be looking to invest in a high quality handset that can keep up with the buzz. These phones are typically priced from around $79.99 up to around $600 depending on how many features your company requires.

The more expensive handsets will generally offer more features, longer battery life, increased range and better quality calls. But when it comes down to it, your total layout will very much depend on the number of people using the system and how many handsets they need. Overall costs can range from a few hundred pounds to over a thousand pounds for larger systems.

If you want to expand your system as the business grows, DECT cordless phone systems are easy to add. Simply purchase additional base stations and handsets as required.

Installing a DECT cordless system should also go some way to saving your company money, as there should be reduced reliance on more expensive, extended mobile or smartphone use.


During your research, you've probably come across the terms DECT 6.0 and ECO DECT. So, let's explore and compare these technologies.

DECT 6.0 (Digital Enhanced Cordless Technology):

  • Offers a higher standard of cordless phone technology over longer ranges
  • Base stations can support up to six cordless handsets
  • Base station connects via an analog or digital phone line and handles the handset radio connection
  • The range of a DECT phone is around 165 feet indoors and up to 1000 feet in an open space
  • Booster units are available to extend the range
  • Battery life of around 12 hours in use and up to two hundred hours when in standby
  • When integrated with a VoIP PBX phone system, some models will allow users to send SMS text messages and access their emails


  • Reduces so-called electric smog (the invisible electromagnetic radiation resulting from using both wireless tech and mains electricity)
  • DECT systems employ various modes to minimize the transmitting power of both the base station and the handset while in idle mode

Expert Verdict

Choosing the best cordless phone model for your home office, or your team of remote workers, will depend on your unique requirements and budget; so it’s worth compiling a list of features that are essential to your company’s day to day operations.

Another way to discover the best phone cordless phone system for your business is to fill out our short questionnaire. We'll ask about your operation, and what your priorities are. Once complete, we'll match you up with phone system suppliers that can meet your needs with aplomb. You can sit back, because those suppliers will get in touch with you themselves to offer free, no-obligation quotes, and answers to all your questions.

▶ Read more: Business Phone Systems

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Aimee profile image
Aimee Bradshaw Writer and researcher

Aimee is Expert Market’s resident telephone systems and point of sale go-to. If she’s not writing about business products, you’ll find her daydreaming about dog walking on Dorset beaches.

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