United Yealink Optima HD Voice technology, the T44U awards you the superb audio quality and crystal-clear voice communications. The phone feels quicker and more responsive when performing call features. Moreover, the T44U puts dual USB ports in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come true, and you can use any two of them freely according to your needs. The Yealink new T4U series offers the same elegant appearance as the T4 line, but with improvements for greater interoperability and better collaboration. The T4U series better builds the Yealink ecosystem and is compatible with more Yealink headsets, supporting intelligent channel switching* and using the phone to configure and upgrade headset.
Yealink SIP-T44U IP Phone (SIP-T44U / P/N: 1301214) Specifications
The Yealink SIP-T44U is a feature-rich Gigabit IP phone designed for executives, office professionals, receptionists, and users with moderate to high call volumes. It supports up to 12 SIP accounts, dual Gigabit Ethernet ports, HD audio, dual USB ports, and optional Wi-Fi and Bluetooth connectivity.
General Specifications
Feature
Specification
Model
Yealink SIP-T44U
Part Number
1301214
Phone Type
Business IP SIP Phone
SIP Accounts
Up to 12 SIP Accounts
Display
2.8-inch Color LCD
Resolution
320 × 240 Pixels
Backlight
Yes
Warranty
Manufacturer warranty (varies by region)
Audio Features
Yealink Optima HD Voice
Full-duplex speakerphone
Acoustic Shield Technology
Smart Noise Filtering
Hearing Aid Compatible (HAC)
Wideband Codecs:
G.722
AMR-WB (optional)
Narrowband Codecs:
G.711 A-law/μ-law
G.729 A/B
G.726
G.723.1
iLBC
AMR-NB (optional)
Display & User Interface
2.8-inch Color LCD
320 × 240 Resolution
LED Call & Message Indicators
Intuitive Graphical User Interface
Multi-language Support
Caller ID with Name & Number
Power Saving Mode
Programmable Keys
8 Line Keys with LED
Up to 21 DSS Keys (3-page view)
4 Context-sensitive Soft Keys
Navigation Keys
Dedicated Keys:
Message
Headset
Mute
Redial
Speakerphone
Volume Control
Phone Features
Call Hold
Call Transfer
Call Waiting
Call Forward
Speed Dial
Redial
Do Not Disturb (DND)
Auto Answer
Hotline
Call Park
Call Pickup
Busy Lamp Field (BLF)
Executive & Assistant
Anonymous Call
Visual Voicemail
Emergency Call
5-Way Audio Conference
Connectivity
2 × Gigabit Ethernet (10/100/1000 Mbps)
2 × USB 2.0 Ports
1 × RJ9 Handset Port
1 × RJ9 Headset Port
IEEE 802.3af Power over Ethernet (PoE), Class 3
Optional AC Power Adapter
USB Expansion
Supports:
USB Call Recording
USB Flash Drive
USB Headsets
Yealink EXP43 Expansion Module
Bluetooth via BT41/BT51 USB Dongle
Wi-Fi via WF40/WF50 USB Dongle
DECT Wireless Headsets
Yealink Wireless Headsets
Network & Security
SIP v1 & v2
TLS 1.3
SRTP
HTTPS
OpenVPN
IEEE 802.1X
IPv6
VLAN (802.1Q)
QoS (Layer 3 DSCP)
LLDP/CDP
DHCP
Secure Boot
AES-256 Configuration Encryption
WPA2/WPA3 Wireless Security
Management
Zero-Touch Provisioning
Auto Provisioning (FTP/TFTP/HTTP/HTTPS)
Yealink Redirection & Provisioning Service (RPS)
TR-069 Support
Web Management Interface
Phone Lock
Firmware Upgrade via Network
Physical Specifications
Feature
Specification
Dimensions (W × D × H)
224.9 × 206.2 × 174.9 mm
Weight
Approximately 1 kg
Color
Classic Grey
Mounting
Desktop or Wall Mount
Stand Positions
2 Adjustable Angles
Power
PoE (IEEE 802.3af)
Optional 5V DC Power Adapter
Power Consumption:
PSU: 1.7–4.1 W
PoE: 2.0–4.9 W
Package Contents
Yealink SIP-T44U IP Phone
Handset
Handset Cord
Ethernet Cable
Desk Stand
Quick Start Guide
Power Adapter (Optional)
Wall Mount Bracket (Optional)
Ideal Applications
Corporate Offices
Executive Desks
Reception Areas
Call Centers
Customer Service Teams
Financial Institutions
Government Offices
Healthcare Facilities
Educational Institutions
Key Highlights
Up to 12 SIP Accounts
2.8-inch Color Display
Dual Gigabit Ethernet Ports
Dual USB Ports
HD Voice with Acoustic Shield
Smart Noise Filtering
5-Way Audio Conferencing
PoE Support
Wi-Fi & Bluetooth Ready (optional USB dongles)
EXP43 Expansion Module Support
TLS 1.3 & SRTP Security
Zero-Touch Provisioning for easy enterprise deployment.
Additional information
Weight
1.3 kg
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Refund Policy
Dirigible Technologies Nig Ltd, a company incorporated under the laws of Nigeria, having its registered office at Mazars building 2nd Floor 18, Oba Akran Avenue 100212 Ikeja Lagos-Nigeria (“the Company”) offers various Online Wholesale and retail solutions, including through its website www.dirigible.com.ng and other applications (“Platforms”) various online lifestyle, fashion, grocery and electronics solutions, which inter alia facilitates the sale and purchase of products across categories related to fashion & lifestyle, consumer electronics, grocery and general merchandise (“Products”) by users of the Platforms (“Users”).
Cancellation
Cancellations of orders is possible only before the order is invoiced for shipment. Once an order is invoiced and packed, it cannot be cancelled
To cancel an order, please visit the “My Account > My Order” section on the website. Click on “Cancel Order” button and select products to be cancelled. Post cancellation, the refund will be posted back via the original method of payment for all pre-paid orders
Bulk Orders
Dirigible.com.ng reserves the right to cancel bulk orders placed on the website. To avoid such cancellations and for bulk orders, please visit our Corporate Enquiry section.
Returns
The following general returns policy is applicable to all items sold on dirigible.com.ng.
1. A product purchased on Dirigible.com.ng is eligible for return within the return period mentioned in the table below if it fulfils any of the following conditions:
Product delivered is different from what was ordered
Product was received in a physically damaged condition or was found defective when package was opened.
The product or parts of the product or accessories that were described on the website as “In the Box” was missing.
All our packages come with “Tamper Evident Void Seals”, click here for more information on our packaging. Please ensure that you do not accept packages where the seal has tampered. Acceptance of a tampered “Void Seal” or a damaged box will automatically disqualify any return claims for physically damaged/defective products, an incorrect product, or missing accessories.
Please Note: Any product noticed as “Received in Physically DamagedCondition or Damage upon Delivery“ has to be reported within 24 hours to be eligible for a replacement. Any issues reported after 24 hours will not be accepted.
The below product categories are marked as “non-returnable” unless the package received is verified as Defective or Damaged
Mobile Phones and Laptops
Mobile Phone accessories like screen guards, screen protectors and tempered glass.
All console games and PC games that are labeled as non-returnable on their product detail pages.
2. All items to be returned must be in their original condition along with the following.
Original Order Invoice
Original packaging with labels, user manuals and warranty card
Serial Number/IMEI of the product being returned should match our system
Any accessories/components, combo or bundle products or freebies you received with the purchase
For Wrong product/colour, incorrect description and missing accessories, the product should be unused
For “Defective on Arrival” of installable products, returns will be accepted only if the product was installed by Dscw engineers
Returns will not be accepted if any of the installable products is unboxed and or installed by customer himself or by anyone other than Dirigible Stores’s service team Dscw. Any damages or defects for such products will not be accepted. These could include but not limited to –
1. GAS Leakages in Air Conditioners
2. Wrong connections or Wrong installations
3. Missing items reported, damages, dents etc.
For DOA of non-installable products, replacements would be processed basis the following
a) All Apple products (smartphones, MacBook’s, airpods and accessories) must include a DOA or defective certificate from a Brand Authorized Service Centre
b) Products like Smartphones and Laptops must include a DOA or defective certificate from a Brand Authorized Service Centre
c) DOA products should be handed over to the delivery pick-up person as sealed by the brand. Any tampering done to the brand DOA seal will not be accepted for a replacement or refund
Final QA of the product and certification of defect by the Dscw engineers when the product is received back as a return
Failure to return the freebie/promotional product availed in the order will result in refund of only the product being returned/cancelled
3. Please ensure you have erased any/all personal informed from an electronic device that stores any personal information prior to returning. Dirigible Stores shall not be liable for any misuse or usage of such information.
The associated return window and exceptions (if any) for returns as per category is defined below:
Product/Category
Return Window and Exceptions
Mobiles and Tablets
Mobiles
10 Days, Replacement only
Mobile Accessories
10 Days, Replacement only
Screen guards, screen protectors and tempered glasses are non-returnable.
Tablets
10 Days; Replacement only
Computers and Accessories
Laptops
10 Days; Replacement only
Software
Software products are not eligible for returns/ replacements.
Office & Stationery Supplies
10 Days; Replacement only
Printers
10 Days; Replacement only
Desktops & All-In-Ones, Computer Speakers, Computer Accessories, Laptop Chargers & Adaptors, Data Storage Devices, Pen Drives, Internet Connectivity Devices, Routers, Input Communication Devices, Keyboards, Mouse & Mouse Pads
For any issues with products purchased via “Insta Delivery (less than 3 hours)”, customers can call the Store number listed on the invoice. A product will be accepted for a return only for the reasons mentioned above
Once returns are processed for these orders, only refunds will be initiated. There is no replacement on “Insta Delivery” orders.
How to generate a Return Request:
Please call our customer support centre at +234 915 387 7294 or email us at dirigiblestores@dirigible.com.ng to get a Return Authorization code and request a pickup. An email will be sent with the Return details. Pick up of the order to be returned will be arranged only after the Return Authorization code is generated.
Please ensure you collect the manifest copy from the courier personnel picking up the delivery. This will be your reference to track the Return order transit and claim for any losses in transit.
Once we receive the product back, our Dscw engineers will evaluate the returned product and provide a resolution based on the evaluation report. The replacement product will be shipped out basis the evaluation report.
If you’ve received a non-returnable product in a damaged/defective condition, please contact us within 10 days from the delivery of the product.
For Insta and Standard Delivery
Original Order – MODE OF PAYMENT
MODE OF REFUND
Credit Card
Credit Card
Debit Card
Debit Card
Net-Banking
Net-Banking
Existing Store-Credit
Store Credit
Cash on Delivery
Store Credit
Wallet
Wallet
Store Credit + another mode
Store Credit and the same Mode of Payment
Pick At Store Orders
Any mode of payment
Store credit loaded on Gift Voucher
Cancellation / Return / Exchange Policy
Dirigible Technologies Nig Ltd, a company incorporated under the laws of Nigeria, having its registered office at Mazars building 2nd Floor 18, Oba Akran Avenue 100212 Ikeja Lagos-Nigeria (“the Company”) offers various Online Wholesale and retail solutions, including through its website www.dirigible.com.ng and other applications (“Platforms”) various online lifestyle, fashion, grocery and electronics solutions, which inter alia facilitates the sale and purchase of products across categories related to fashion & lifestyle, consumer electronics, grocery and general merchandise (“Products”) by users of the Platforms (“Users”).
Cancellation
Cancellations of orders is possible only before the order is invoiced for shipment. Once an order is invoiced and packed, it cannot be cancelled
To cancel an order, please visit the “My Account > My Order” section on the website. Click on “Cancel Order” button and select products to be cancelled. Post cancellation, the refund will be posted back via the original method of payment for all pre-paid orders
Bulk Orders
Dirigible.com.ng reserves the right to cancel bulk orders placed on the website. To avoid such cancellations and for bulk orders, please visit our Corporate Enquiry section.
Returns
The following general returns policy is applicable to all items sold on dirigible.com.ng.
1. A product purchased on Dirigible.com.ng is eligible for return within the return period mentioned in the table below if it fulfils any of the following conditions:
Product delivered is different from what was ordered
Product was received in a physically damaged condition or was found defective when package was opened.
The product or parts of the product or accessories that were described on the website as “In the Box” was missing.
All our packages come with “Tamper Evident Void Seals”, click here for more information on our packaging. Please ensure that you do not accept packages where the seal has tampered. Acceptance of a tampered “Void Seal” or a damaged box will automatically disqualify any return claims for physically damaged/defective products, an incorrect product, or missing accessories.
Please Note: Any product noticed as “Received in Physically DamagedCondition or Damage upon Delivery“ has to be reported within 24 hours to be eligible for a replacement. Any issues reported after 24 hours will not be accepted.
The below product categories are marked as “non-returnable” unless the package received is verified as Defective or Damaged
Mobile Phones and Laptops
Mobile Phone accessories like screen guards, screen protectors and tempered glass.
All console games and PC games that are labeled as non-returnable on their product detail pages.
2. All items to be returned must be in their original condition along with the following.
Original Order Invoice
Original packaging with labels, user manuals and warranty card
Serial Number/IMEI of the product being returned should match our system
Any accessories/components, combo or bundle products or freebies you received with the purchase
For Wrong product/colour, incorrect description and missing accessories, the product should be unused
For “Defective on Arrival” of installable products, returns will be accepted only if the product was installed by Dscw engineers
Returns will not be accepted if any of the installable products is unboxed and or installed by customer himself or by anyone other than Dirigible Stores’s service team Dscw. Any damages or defects for such products will not be accepted. These could include but not limited to –
1. GAS Leakages in Air Conditioners
2. Wrong connections or Wrong installations
3. Missing items reported, damages, dents etc.
For DOA of non-installable products, replacements would be processed basis the following
a) All Apple products (smartphones, MacBook’s, airpods and accessories) must include a DOA or defective certificate from a Brand Authorized Service Centre
b) Products like Smartphones and Laptops must include a DOA or defective certificate from a Brand Authorized Service Centre
c) DOA products should be handed over to the delivery pick-up person as sealed by the brand. Any tampering done to the brand DOA seal will not be accepted for a replacement or refund
Final QA of the product and certification of defect by the Dscw engineers when the product is received back as a return
Failure to return the freebie/promotional product availed in the order will result in refund of only the product being returned/cancelled
3. Please ensure you have erased any/all personal informed from an electronic device that stores any personal information prior to returning. Dirigible Stores shall not be liable for any misuse or usage of such information.
The associated return window and exceptions (if any) for returns as per category is defined below:
Product/Category
Return Window and Exceptions
Mobiles and Tablets
Mobiles
10 Days, Replacement only
Mobile Accessories
10 Days, Replacement only
Screen guards, screen protectors and tempered glasses are non-returnable.
Tablets
10 Days; Replacement only
Computers and Accessories
Laptops
10 Days; Replacement only
Software
Software products are not eligible for returns/ replacements.
Office & Stationery Supplies
10 Days; Replacement only
Printers
10 Days; Replacement only
Desktops & All-In-Ones, Computer Speakers, Computer Accessories, Laptop Chargers & Adaptors, Data Storage Devices, Pen Drives, Internet Connectivity Devices, Routers, Input Communication Devices, Keyboards, Mouse & Mouse Pads
For any issues with products purchased via “Insta Delivery (less than 3 hours)”, customers can call the Store number listed on the invoice. A product will be accepted for a return only for the reasons mentioned above
Once returns are processed for these orders, only refunds will be initiated. There is no replacement on “Insta Delivery” orders.
How to generate a Return Request:
Please call our customer support centre at +234 915 387 7294 or email us at dirigiblestores@dirigible.com.ng to get a Return Authorization code and request a pickup. An email will be sent with the Return details. Pick up of the order to be returned will be arranged only after the Return Authorization code is generated.
Please ensure you collect the manifest copy from the courier personnel picking up the delivery. This will be your reference to track the Return order transit and claim for any losses in transit.
Once we receive the product back, our Dscw engineers will evaluate the returned product and provide a resolution based on the evaluation report. The replacement product will be shipped out basis the evaluation report.
If you’ve received a non-returnable product in a damaged/defective condition, please contact us within 10 days from the delivery of the product.
Dear Esteemed customers. Due to current exchange rate fluctuations, our old prices are no longer valid. We apologize for the delay in updating the price on our website. Please contact us to confirm the new price and product availability before placing your order. Call/SMS/WhatsApp: +234 818 024 5741 Email: sales@dirigible.com.ng
Thanks for your usual cooperation Dirigible Management
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