Mitel IP 420 Telephone (10573)
The Mitel IP 420 Telephone (10573) is a reliable two-line IP phone designed for common areas, break rooms, lobbies, contact centers, and light-use office environments. Featuring a high-contrast backlit display, full-duplex speakerphone, integrated Ethernet switch, and essential call handling features, the Mitel IP 420 delivers dependable VoIP communications in a compact and cost-effective design.
Originally introduced as the ShoreTel 420 IP Phone, the Mitel IP 420 continues to provide the same proven functionality following Mitel’s acquisition of ShoreTel in 2017.
Features
- Two-line IP phone
- High-contrast backlit display
- 130 x 28 pixel display resolution
- Caller ID support
- Six dedicated feature keys
- Transfer key
- Conference key
- Hold key
- Redial key
- Call history access
- Voicemail key
- Dual LED status indicators
- Full-duplex speakerphone
- Dedicated audio controls
- Unlimited system directory access
- Alphanumeric directory lookup
- Integrated 10/100 Ethernet switch
- Compact desktop design
- Professionally tested
- Warranty included
Specifications
- Manufacturer: Mitel
- Model: IP 420
- Part Number: 10573
- Product Type: IP Business Telephone
- Display:
- 130 x 28 Pixel Resolution
- Backlit LCD Display
- Caller ID Support
- Lines:
- 2 Line Appearances
- Feature Keys:
- 6 Dedicated Function Keys
- Audio:
- Full-Duplex Speakerphone
- Adjustable Audio Controls
- Ethernet:
- Integrated 10/100 Ethernet Switch
- Power:
- IEEE 802.3af PoE Class 2
- Power Consumption:
- 2.4W Idle
- 3.2W Active
- 3.9W Maximum
- Optional Local Power Adapter Available
Supported Protocols and Codecs
Network Protocols
- SIP
- VLAN
- DiffServ/ToS
- Quality of Service (QoS)
Audio Codecs
- G.711
- G.722
- G.723
- G.726
- G.729a
- iLBC
- Linear16
Key Calling Features
- Caller ID
- Call Transfer
- Conference Calling
- Call Hold
- Redial
- Call History
- Voicemail Access
- Directory Lookup
- Speakerphone Operation
Compatibility
Compatible with SIP-based communications environments supporting:
- SIP Protocol
- VLAN Networks
- QoS Deployments
- Standard VoIP Infrastructure
ShoreTel and Mitel Compatibility Note
The ShoreTel 420 IP Phone and Mitel IP 420 Telephone are identical hardware platforms. The phone was rebranded under the Mitel name following Mitel’s acquisition of ShoreTel in September 2017.
Ideal Applications
The Mitel IP 420 is ideal for:
- Break Rooms
- Lobbies
- Reception Areas
- Common Areas
- Contact Centers
- Retail Locations
- Healthcare Facilities
- Classrooms
- Shared Workstations
- General Office Use
Why Choose the Mitel IP 420?
The Mitel IP 420 provides dependable VoIP communications with a simple interface and essential business calling features. Its compact footprint, speakerphone capabilities, integrated Ethernet switch, and support for multiple voice codecs make it an excellent solution for common-area deployments and users with basic communication requirements.
Professionally Tested
Each Mitel IP 420 Telephone (10573) is professionally tested to help ensure reliable performance and compatibility with supported SIP communications environments.
Package Includes
- Mitel IP 420 Telephone
- 1-Year Warranty
Related Products
Browse our selection of Mitel IP phones, ShoreTel telephones, replacement handsets, power supplies, business communications accessories, and VoIP equipment.
Documentation
Need setup and operating instructions for the Mitel IP 420 Telephone?
Download the Mitel 420 / 420G User Guide for detailed information on installation, configuration, and operation.





