DECT vs BLUETOOTH HEADSETS
What is right for your wireless communication system?
UNDERSTANDING DECT AND BLUETOOTH
DECT and Bluetooth are the two main wireless communication solutions for connecting headsets to devices in both personal and business settings. For simplicity, we’ll focus on wireless options and set aside wired headsets. While both Bluetooth and DECT serve similar purposes, they differ in their strengths and benefits, depending on business needs. This article will guide you in choosing between DECT and Bluetooth based on your specific requirements.
It’s also important to mention early on that there are limitations to consider, which we’ll cover throughout this article.
By the end of this article you will know what DECT and Bluetooth is; how their connectivity compares including range; security; density; and compatibility.
DID YOU KNOW?
Enconvo can build you an industry-leading communication system – complete with DECT business cloud phones, DECT headsets, or Bluetooth headsets – with the Enconvo [] business communication system.
We supply industry leading headsets from Yealink. We can also supply on-ear or over-ear headset solutions.
KEY ELEMENTS OF WIRELESS COMMUNICATION SYSTEMS
Range | A good communication system should have an appropriate range to meet the needs of the environment. DECT headsets typically offer an indoor range of up to 160 meters, making them suitable for large offices. Bluetooth devices, on the other hand, generally have a range of up to 30 meters, which is ideal for personal use but may be limiting in larger spaces. |
User Density | User density refers to the number of devices that can operate simultaneously without interference. DECT systems excel in high-density environments, such as call centres, supporting multiple connections without degrading audio quality. Bluetooth is less effective in crowded areas due to interference from other devices on the same frequency. |
Security | Security is essential for protecting sensitive conversations. DECT offers robust encryption options, including 64-bit and 128-bit AES, along with secure pairing methods to ensure privacy. Bluetooth also provides strong security through 128-bit encryption and frequency hopping, though it is generally more susceptible to interception. |
Audio Quality | High audio quality is crucial for effective communication. DECT headsets deliver superior sound quality, making them suitable for professional environments. Bluetooth offers good audio quality but can vary depending on the specific device and connection stability. |
Ease of Use | A user-friendly system simplifies communication. DECT headsets often require manual pairing with a base station, while Bluetooth devices typically allow for easy, automatic reconnection to previously paired devices, enhancing user convenience. |
But how does this relate to deciding between DECT and Bluetooth headsets we hear you say? Read on understand what both technologies offer and how to best decide on the solution for your business.
WHAT IS DECT?
DECT (Digital European Cordless Telecommunications) is a wireless standard that connects cordless audio accessories to desk phones or softphones using a base station or dongle.
Different regions use various frequency bands, which can cause compatibility issues. It’s essential to ensure that your devices work with the specific DECT frequency in your area.
For instance, DECT 6.0 is used in North America and operates on a different frequency band than the DECT standard in Europe. This difference makes devices from Europe incompatible with those from North America.
WHAT IS BLUETOOTH?
Bluetooth is a wireless technology used for many purposes. It not only helps with phone calls but also allows different devices to share data easily. Unlike DECT, Bluetooth doesn’t need a base station; any Bluetooth-enabled device can connect directly to another one. Generally, incompatibility is less about frequency and more about differences in Bluetooth versions.
DECT vs BLUETOOTH COMPARISON
When choosing between DECT and Bluetooth, it’s crucial to assess your business’s unique needs.
DECT is the superior choice for businesses that discuss confidential information during calls and need to be compliant to industry regulations. On the other hand, Bluetooth might be the more economical and appropriate option for businesses requiring lower-cost and simpler implementation and maintenance.
As you can see from the comparison table, despite both Bluetooth and DECT fulfilling largely the same function when it comes to communications, there are a few notable differences.
We provide some additional – but vital – context to the differing features below.
DECT | Bluetooth | |
---|---|---|
Frequency Band | 1.9 GHz (dedicated) | 2.4 GHz (shared with Wi-Fi and other devices) |
Range | Up to 160 metres | Up to 50 metres |
User Density | Supports high user density in offices | Best for lower density, personal use |
Battery Life | Generally longer on a single charge | Shorter battery life, requires more frequent recharging |
Interference Handling | Less prone to interference | More susceptible to interference but uses frequency hopping to mitigate it |
Example Headset | ![]() | ![]() |
Solution |
CONNECTIVITY
DECT | Bluetooth | |
---|---|---|
Products | ![]() | ![]() |
Max. Connected Devices | 2 | 8 |
Notes | Devices need to be bluetooth enabled | Dedicated base station + bluetooth |
A Bluetooth headset can pair with up to 8 devices and connect to 2 of them simultaneously, provided all devices are Bluetooth-enabled. This versatility makes Bluetooth headsets ideal for everyday use.
In contrast, DECT headsets are designed to pair with a single dedicated base station or dongle, which connects to devices like desk phones and softphones. Depending on the product, DECT headsets can support multiple simultaneous connections. However, their reliance on a base station or dongle means they are primarily used in traditional office and contact centre environments.
RANGE
DECT | Bluetooth | |
---|---|---|
Products | ![]() | ![]() |
Wireless Range (Indoors) | Up to 160m | Up to 50m |
Notes | – | Range dependent on number |
Standard Yealink DECT headsets have an indoor range of about 160 metres. This range can be increased even further—potentially without limits—by using wireless routers placed strategically around the office.
In contrast, Yealink Bluetooth headsets have a range of up to 50 metres.
The operating ranges of both Bluetooth and DECT are affected by whether they are used indoors or outdoors, as well as any obstacles between the devices. To improve signal quality, DECT uses two “diversity antennas” that automatically select the antenna with the strongest signal. Additionally, using a DECT repeater can help extend connectivity.
In a busy office with many DECT connections within a 100-metre range, you could theoretically run out of available channels. However, this is rarely a practical problem, as the range of a DECT device can be adjusted downwards to support multiple connections.
ENCONVO [] ESSENTIAL FEATURES
The unified communications solution – Enconvo [] – will enhance connectivity and collaboration by bringing your wireless technology into a single solution.
DECT’s robust range and ability to support high user density make it an excellent choice for busy office environments, ensuring clear and uninterrupted communications. Alternatively, Bluetooth’s flexibility allows for easy connection across various devices, catering to employees who prefer mobility. By integrating these technologies into the Enconvo [] platform, your business can ensure seamless communication that meet your unique operational needs, ultimately driving productivity and efficiency.
For those already benefitting from our Enconvo [] unified communications solution, and now wish to discuss your wireless technology, simply contact us today.
SECURITY
DECT | Bluetooth | |
---|---|---|
– | ![]() | ![]() |
Encryption | 64-bit | 128-bit |
Notes | Multiple layers of security | Will shift operating frequency |
Security is a key concern when it comes to sensitive communications between parties. Fortunately, both DECT and Bluetooth standards offer robust security features, with DECT providing additional safeguards for highly sensitive conversations.
DECT SECURITY
DECT employs a three-level security chain:
Authentication: The headset pairs with a base station using the DECT Standard Authentication Algorithm (DSAA), which validates the initial connection. Some devices also utilize the more secure DSAA2 algorithm.
Connection Verification: When a new call is initiated, the security bindings between the headset and base station are verified to ensure that both devices are authorized.
Data Encryption: Voice data is encrypted using 64-bit encryption, rendering it useless to any intercepting party.
BLUETOOTH SECURITY
Bluetooth also utilises a validation process for initial pairing. Although pairing occurs over the air, the range is typically limited to reduce the chance of outside interception.
Bluetooth devices employ 128-bit data encryption, and paired devices frequently shift their operating frequency to enhance security.
DENSITY
DECT | Bluetooth | |
---|---|---|
– | ![]() | ![]() |
Frequency | 1.9 GHz | 2.4 GHz |
Notes | Multiple layers of security | Will shift operating frequency |
Another important factor to consider when using wireless headsets in a busy office is user density. This term refers to the number of active devices in close proximity that can operate simultaneously without interfering with each other’s connections or degrading audio quality. As the number of active devices increases in a given area, so does the density, leading to a higher likelihood of radio interference.
DECT headsets can support significantly higher user densities compared to Bluetooth headsets. Bluetooth devices are susceptible to interference from other gadgets that operate on the same open 2.4 GHz frequency, such as Wi-Fi routers, printers, and televisions. In contrast, DECT headsets function within their own dedicated frequency range, minimizing the risk of interference. This is why DECT technology excels in crowded environments, such as contact centers, where connection quality and stability are crucial.
DECT vs BLUETOOTH HEADSETS: WHICH SOLUTION SUITS YOUR BUSINESS NEEDS?
As we have previously mentioned DECT and Bluetooth are both strong technology, with their own limitations. But, that doesn’t make the decision any easier for those businesses that are able to choose between one or the other.
So here are a couple of scenarios that might help lighten that decision.

Scenario One: Large Retail Business
Business Needs:
A large retail store needs a good way for staff to talk to each other to help customers and keep the store running smoothly.
Reason:
- Provides long-range communication, allowing staff to talk across the entire store, even in areas with thick walls.
- Offers clear audio quality and minimal interference from other devices, making it easy to hear each other.
- Supports many users at once, helping teams stay connected without delays.
- Reduces the risk of dropped calls, which is important in busy shops where quick responses are necessary.

Scenario Two: Manufacturing Facility
Business Needs:
A manufacturing facility needs a communication system so workers can stay in touch while they move around, improving productivity and safety.
Reason:
- Ideal for short-range communication, allowing workers to use Bluetooth headsets or devices while on the go.
- Enables hands-free operation, which is crucial for tasks that require the use of both hands, enhancing safety and efficiency.
- Can connect to various devices, like tablets or smartphones, providing different ways to communicate.
- Reduces the need for walkie-talkies or intercoms, which cuts down on equipment costs and upkeep.

Scenario Three: Healthcare Facility
Business Needs:
A hospital wants to improve communication among staff and monitor patients better to ensure quick responses to emergencies and provide better care.
Reason:
- Provides secure, reliable communication that is crucial in healthcare, where clear and quick messages are vital.
- Works well with medical devices, allowing staff to monitor patients and receive alerts smoothly.
- Offers features for priority messaging, ensuring important alerts are sent immediately.
- Reduces the risk of interference from Wi-Fi networks, which can disrupt communication during busy times.
OUR THOUGHTS
The shift towards wireless communication technologies like DECT and Bluetooth has transformed the way we work in modern offices. With the convenience of cordless headsets, employees can enjoy greater mobility and flexibility while communicating effectively. However, the choice between DECT and Bluetooth is not merely a matter of preference; it directly impacts connection quality, user density, and security.
For businesses that require reliable and secure communication in high-density environments, DECT headsets are the ideal solution. They offer superior range, stability, and enhanced security features, making them perfect for busy offices and contact centres. On the other hand, Bluetooth headsets provide versatility and ease of use, allowing employees to connect multiple devices seamlessly thanks to the ease of connecting to personal and business devices.
Ultimately, the right choice depends on your specific need, work environment, and compliance. Supplying Yealink DECT and Bluetooth headsets enables us to tailor solutions to fit each unique business, and our range of headsets is designed to meet various communication demands. Whether you prioritise mobility, security, or user density, we have the perfect solution to complement your communication system.
If you’d like to learn more about how our DECT and Bluetooth headsets can enhance your workplace communication, please don’t hesitate to reach out to our experienced team. We’re here to help you find the ideal solution for your needs!
Discover How We Will Solve Your Business Communications Challenge
BUSINESS PHONE HARDWARE GUIDE
Navigating the options and functionalities on offer when choosing to upgrade your telephone system can be daunting. To help you choose the right configuration of features and to answer your top questions, we’ve put together a series of detailed articles to form a guide.
We hope this guide will help you make an informed decision that will benefit your business by improving communications and productivity. Below you can find links to popular content within the guide, or you can view a complete list of the articles in our business phone systems guide.
HEADSET COMPATIBILITY
We have a comprehensive list of compatible Yealink cloud phones for each wired, bluetooth and DECT business headset.
YOUR QUESTIONS ANSWERED
DECT (Digital Enhanced Cordless Telecommunications) headsets use a proprietary wireless standard primarily designed for voice communication, offering high-quality audio with a range up to 160 metres. Bluetooth headsets, on the other hand, use a universal short-range wireless protocol, with a maximum range of about 50 metres, depending on the device version and environment. Bluetooth is versatile and allows pairing with various devices, including smartphones, tablets, and computers.