Reduce desk cabling
Connect a supported phone to an approved wireless network when Ethernet is impractical.
Not sure what you need?
Read our complete guide.
Not sure what you need?
Read our complete guide.
Yealink • SKU wf40
A compact plug-and-play 2.4GHz Wi-Fi adapter for specifically supported Yealink IP phones, with up to 150 Mbps wireless connectivity.

The Yealink WF40 adds 2.4GHz 802.11b/g/n Wi-Fi connectivity to compatible Yealink IP phones. It is a low-power USB accessory rated for transmission up to 150 Mbps. Official compatibility includes selected legacy and current T2, T4 and T5 series phones, but required firmware differs by model. The adapter does not make every Yealink phone wireless and should only be ordered after checking the exact host phone and firmware.
Quick answer: Choose WF40 for an approved Yealink phone that only needs 2.4GHz Wi-Fi. Choose WF50 where a confirmed compatible phone and network require dual-band 2.4/5GHz connectivity.
Connect a supported phone to an approved wireless network when Ethernet is impractical.
Use the compact plug-and-play form factor on a compatible Yealink host.
Add up to 150 Mbps connectivity without paying for unneeded 5GHz capability.
A quick fit check for Australian businesses comparing equipment for users, rooms, sites or wider projects.
| Exact model | Yealink WF40 |
|---|---|
| Product type | Wi-Fi USB dongle |
| Band | 2.4GHz |
| Standards | IEEE 802.11b/g/n |
| Maximum rate | Up to 150 Mbps |
| Host | Selected Yealink T2/T4/T5 phones |
| Firmware | Model-dependent minimum version |
No. WF40 is a 2.4GHz 802.11b/g/n adapter. Use a compatible WF50 for dual-band requirements.
Yealink rates WF40 for transmission up to 150 Mbps.
No. It supports only listed models and some require specific firmware versions.
No. WF40 provides Wi-Fi connectivity only; the host phone still needs its approved power method.
Compatibility should not be assumed. Confirm the exact Yealink model, firmware, SIP platform, network, power and accessory requirements before ordering.
This DigiPhone listing is presented as an Australian version with the applicable manufacturer warranty in Australia and Australian Consumer Law protections.
Yes. Contact DigiPhone with SKU wf40, site and user quantities, target phone platform and required coverage for compatibility and project support.
Add wireless connectivity without a bulky external bridge.
Connect to supported 802.11b/g/n business Wi-Fi networks.
Provide sufficient rated throughput for supported phone functions.
Use a purpose-built Yealink phone accessory.
Extend selected T2, T4 and T5 models where firmware requirements are met.
Simplify deployment on an approved host phone.
Best for: compatible Yealink IP phones that need a verified 2.4GHz Wi-Fi connection instead of wired Ethernet.
| DigiPhone SKU | wf40 |
|---|---|
| Product type | Wi-Fi USB dongle |
| Frequency | 2.4GHz |
| Wireless standards | IEEE 802.11b/g/n |
| Transmission rate | Up to 150 Mbps |
| Deployment | Plug-and-play on supported phones |
| Compatibility | Selected SIP-T27G/T29G/T41S/T42S/T46S/T48S/T42U/T43U/T46U/T48U/T52S/T54S/T53 models |
| Firmware | Minimum version varies by host phone |
| Manufacturer warranty | Yealink manufacturer warranty in Australia; duration not supplied |
Compatibility note: Confirm exact host phone, minimum firmware, USB support, 2.4GHz coverage, wireless security and voice QoS before ordering.
| SKU | wf40 |
| Barcode # | 6938818300828 |
| Brand | YEALINK |
| Shipping Weight | 0.4000kg |
This DigiPhone listing is supplied as an Australian version and is covered by the Yealink manufacturer warranty in Australia; the duration and service conditions were not stated in the supplied DigiPhone record and should be confirmed for this exact product. Warranty service is subject to the manufacturers terms and proof-of-purchase requirements.
Your rights under this warranty are in addition to rights available under the Australian Consumer Law. Keep your DigiPhone invoice and product serial number for any claim.
Bulk and project support: For fleet deployments, spare units or warranty planning, contact DigiPhone with the SKU and required quantity.
Yealink • SKU wf40
A compact plug-and-play 2.4GHz Wi-Fi adapter for specifically supported Yealink IP phones, with up to 150 Mbps wireless connectivity.

The Yealink WF40 adds 2.4GHz 802.11b/g/n Wi-Fi connectivity to compatible Yealink IP phones. It is a low-power USB accessory rated for transmission up to 150 Mbps. Official compatibility includes selected legacy and current T2, T4 and T5 series phones, but required firmware differs by model. The adapter does not make every Yealink phone wireless and should only be ordered after checking the exact host phone and firmware.
Quick answer: Choose WF40 for an approved Yealink phone that only needs 2.4GHz Wi-Fi. Choose WF50 where a confirmed compatible phone and network require dual-band 2.4/5GHz connectivity.
Connect a supported phone to an approved wireless network when Ethernet is impractical.
Use the compact plug-and-play form factor on a compatible Yealink host.
Add up to 150 Mbps connectivity without paying for unneeded 5GHz capability.
A quick fit check for Australian businesses comparing equipment for users, rooms, sites or wider projects.
| Exact model | Yealink WF40 |
|---|---|
| Product type | Wi-Fi USB dongle |
| Band | 2.4GHz |
| Standards | IEEE 802.11b/g/n |
| Maximum rate | Up to 150 Mbps |
| Host | Selected Yealink T2/T4/T5 phones |
| Firmware | Model-dependent minimum version |
No. WF40 is a 2.4GHz 802.11b/g/n adapter. Use a compatible WF50 for dual-band requirements.
Yealink rates WF40 for transmission up to 150 Mbps.
No. It supports only listed models and some require specific firmware versions.
No. WF40 provides Wi-Fi connectivity only; the host phone still needs its approved power method.
Compatibility should not be assumed. Confirm the exact Yealink model, firmware, SIP platform, network, power and accessory requirements before ordering.
This DigiPhone listing is presented as an Australian version with the applicable manufacturer warranty in Australia and Australian Consumer Law protections.
Yes. Contact DigiPhone with SKU wf40, site and user quantities, target phone platform and required coverage for compatibility and project support.
This DigiPhone listing is supplied as an Australian version and is covered by the Yealink manufacturer warranty in Australia; the duration and service conditions were not stated in the supplied DigiPhone record and should be confirmed for this exact product. Warranty service is subject to the manufacturers terms and proof-of-purchase requirements.
Your rights under this warranty are in addition to rights available under the Australian Consumer Law. Keep your DigiPhone invoice and product serial number for any claim.
Bulk and project support: For fleet deployments, spare units or warranty planning, contact DigiPhone with the SKU and required quantity.
Add wireless connectivity without a bulky external bridge.
Connect to supported 802.11b/g/n business Wi-Fi networks.
Provide sufficient rated throughput for supported phone functions.
Use a purpose-built Yealink phone accessory.
Extend selected T2, T4 and T5 models where firmware requirements are met.
Simplify deployment on an approved host phone.
Best for: compatible Yealink IP phones that need a verified 2.4GHz Wi-Fi connection instead of wired Ethernet.
| DigiPhone SKU | wf40 |
|---|---|
| Product type | Wi-Fi USB dongle |
| Frequency | 2.4GHz |
| Wireless standards | IEEE 802.11b/g/n |
| Transmission rate | Up to 150 Mbps |
| Deployment | Plug-and-play on supported phones |
| Compatibility | Selected SIP-T27G/T29G/T41S/T42S/T46S/T48S/T42U/T43U/T46U/T48U/T52S/T54S/T53 models |
| Firmware | Minimum version varies by host phone |
| Manufacturer warranty | Yealink manufacturer warranty in Australia; duration not supplied |
Compatibility note: Confirm exact host phone, minimum firmware, USB support, 2.4GHz coverage, wireless security and voice QoS before ordering.
| SKU | wf40 |
| Barcode # | 6938818300828 |
| Brand | YEALINK |
| Shipping Weight | 0.4000kg |
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