Please allow ~2-3 weeks to dispatch for quality control. Product images are for illustrative purposes only and may contain AI-generated content; they may not represent the final product you receive. Products are subject to the cosmetic grading policy detailed here.
If you are ordering a device that does not include a Windows 11 licence as standard, please check Microsoft's minimum system requirements to confirm if it can be upgraded later should you wish to do so.

Yealink SIP-T21P E2 Refurbished IP Phone – Certified by Reboot IT (1-Year Warranty)
The Yealink SIP-T21P E2 is a refurbished, entry-level SIP IP phone ideal for business-grade communication, equipped with a TI Titan chipset, Power over Ethernet (PoE) support, and a 132 × 64-pixel backlit LCD display. Designed for everyday office or remote desk use, it delivers HD voice clarity, dual SIP line support, and secure VoIP protocols in a compact, efficient design.
Perfect for small to medium businesses, call centres, or home offices migrating to VoIP, the SIP-T21P E2 facilitates smooth connectivity, cost-effective deployment, and an intuitive user experience.
Key Features and Benefits
- Professional-grade communication: Enjoy crisp, wideband HD audio for both handset and speakerphone.
- Network-ready: Integrated dual-port 10/100M Ethernet switch supports PoE (IEEE 802.3af Class 2) for a clean, cable-free setup.
- Ease of management: Supports auto provisioning, TR-069, and zero‑touch deployment, reducing setup time for IT administrators.
- Enhanced productivity: Includes 2 line keys with LEDs, 6 feature keys, and 6 navigation keys for quick access to common functions.
- Strong security and compatibility: Built-in SRTP, TLS, HTTPS, and OpenVPN support for encrypted voice and data transmission.
- Expandable voice directory: Store up to 1000 phonebook entries and benefit from directory integration via XML or LDAP.
- Versatile usability: Compatible with standard RJ9 headsets, wall-mountable design, and suitable for both office and remote configurations.
Specifications
- Display: 132 × 64‑pixel graphical LCD with backlight
- Chipset: TI Titan chipset
- Network: Dual-port 10/100M Ethernet, PoE (IEEE 802.3af, Class 2)
- Audio Codecs: Opus, G.722, G.711(A/µ), G.729AB, G.726, iLBC
- SIP Accounts: Dual SIP lines, SIP v1/v2 compatible
- Interfaces: 2 × RJ9 (handset/headset), 1 × RJ45 network port
- Dimensions: 209 × 188 × 150 × 41 mm (W × D × H × T)
- Weight: Approx. 1.17 kg per unit (based on carton weight data)
- Operation Conditions: -10°C to 50°C; 10–95% humidity (non‑condensing)
- Mounting: Wall‑mountable or desktop configuration
Operating System Insights
The SIP-T21P E2 runs on Yealink’s proprietary firmware, offering stability and strong provisioning tools for enterprise environments.
- Pros: Lightweight OS ensures quick boot-up and remote configurability.
- Cons: Not compatible with app stores or third-party integrations like modern smart devices.
Quality Assurance and Warranty
All refurbished Yealink SIP-T21P E2 units from Reboot IT are verified refurb devices—fully tested for all features and functions using cutting-edge diagnostic software. Reboot IT, an industry leader since 2001, ensures every phone delivers reliable performance equal to OEM standards.
- Comprehensive 1-year warranty from Reboot IT
- All core functions tested and validated (audio, buttons, ports, and PoE)
- Supplied ready for plug-and-play use with your SIP system
Cosmetic Grade Reference
- Excellent Grade: Minimal signs of use, near-new appearance.
- Good Grade: Light cosmetic wear visible but fully functional.
Certified Refurbished by Reboot IT
Every unit undergoes an extensive inspection and restoration process, ensuring you receive a fully functional, business-ready IP phone at a fraction of the new price.
Enhance your team’s communication experience—order the Refurbished Yealink SIP-T21P E2 from Reboot IT today and enjoy quality, performance, and value backed by expert refurbishment.
| Brand | Yealink |
| Bundle Description | None |
| Colour | Black |
| Custom Bundle | No |
| Interface(s) | Ethernet (RJ-45) |
| Model | IP PHONE SIP-T22P |
| Number of Lines | 6 |
| Modified Item | None |
| Number of Lines | 6 |
| Type | Expansion Handset(s) |
| Part Number | None |
Refurbished Computers - Cosmetic Grading Guide
Our supplier's refurbished hardware is typically graded either "Excellent" or "Good", however, some legacy products were graded under a letter grading system (A, B, C). Please find the definitions for each grade below and contact us if you're uncertain of a device's grade.
Used Smartphone / Refurbished Mobile Phones
"Excellent" Grade
Devices in this category appear like new, with very minor wear. Expect light or fine scratches on the screen that are shallow enough not to catch on a fingernail. The edge around the glass is virtually flawless, save for possible light scratching around the power port. The back plate may show light/fine scratches, including on the Apple logo, with any discoloration being minimal.
"Good" Grade
These devices are characterized by being fully tested and functional even if they have body scratches, minor paint chips, or a small hairline crack on the screen. Screens are free from dead pixels but may exhibit slight scratching from moderate use.
Refurbished Desktops, Laptops and Monitors
"Excellent" Grade - Laptops
Reserved for units that show barely any signs of previous use, these laptops may exhibit very minor scuffing or abrasions, associated only with minimal standard use. The keyboards show light wear, and importantly, the screens are pristine, free from any scratches, cracks, chips, dead pixels, dark spots, discoloration, or blemishes.
"Excellent" Grade - Desktops
Desktop PCs in the "Excellent" grade category are free from deep scratches, cracks, paint chips, or any broken/missing pieces, ensuring a sleek and almost-new aesthetic.
"Excellent" Grade - Monitors
"Excellent" grade is reserved for units that show evidence of very little to no previous use. Any wear on an "Excellent" Display, including housing/frame and/or external surfaces (i.e. Frame) is associated with standard minimal use. "Excellent" units may have minor scuffing and / or minor abrasions on plastics with from standard light previous use."Excellent" Displays will feature no scratches, cracks, chips, dead pixels, dark spots, discoloration or blemishes. Units will only feature the standard minimal wear and tear that is associated with a used unit.
"Good" Grade - Laptops
"Good" laptops may feature one or several small dings or dents on covers and / or small paint chips on the surface or small hairline cracks in the bezel. Laptop screens may feature uneven light diffusion in screen and may feature subtle blemishes. "Good" Laptops will not feature cracks screens but may feature slight scratching, dead pixels or white spots on the screen.
"Good" Grade - Desktops
"Good" grade desktops may have light scratches on external body and may feature more excessive unit housing and/or external case wear than "Excellent" units, including wear on case / lid. "Good" PCs may feature one or several small dings or dents on covers and / or small paint chips on the surface.
"Good" Grade - Monitors
Displays in the "Good" grade have been fully tested and are functional but may include scratches on body, small paint chips, minor cracks on body, loose and/or wobbly bases. "Good" Display screens may feature uneven light diffusion in screen and may feature subtle to moderate blemishes. "Good" Displays will not feature cracks on screens but may feature slight scratching on screen surfaces from moderate use or wear, dead pixels or white spots on the screen.
Legacy letter grading
Used Smartphone / Refurbished Mobile Phones
A Grade
- No chips, scratches or cracks on the front glass and housing
- No missing or alternative parts
- No sign of liquid damage
- Battery cannot be swollen
B Grade – Same as A Grade except:
- May have light scuffs but no chips or cracks
- Light scratches on housing or front glass
C-Grade – Same as B Grade except:
- Unlimited long shallow scratches on the front glass
- No chips or cracks on the front glass
- Unlimited scratches, chips/dents on back cover housing and corners
- Minor cracks allowed
- Customized housing and aftermarket covers allowed
Refurbished Desktops, Laptops and Monitors
A-Grade
- Overall excellent to very good cosmetic condition. Some may be pristine, others may have light scratches or minor blemishes
- Laptops may have some shiny areas around the keyboard such as the space bar, touchpad or touchpad buttons
- Keyboard keys will be in excellent condition
- Laptop and monitor screens will be blemish free
- Cosmetic blemishes will not impact the overall functionality or performance of the device
B-Grade
- Will have some cosmetic blemishes that include scratches and/or other imperfections
- Minor scratches and dents on the housing
- Laptops may have shiny keys or shiny surfaces around the keyboard however all characters will be legible
- Laptop and monitors screens will have imperfections such as minor scratches, minor chips and/or white spots. There will be no cracking on the screen
- Have the same warranty as A Grade
- Pricing will be cheaper than A Grade
C-Grade
- Same as B-Grade except may have unlimited scratches/blemishes on the screen
- May have cracks/chips or dents on the housing
- Have the same warranty as A Grade
- Pricing will be cheaper than B Grade












