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Mitel 6873i SIP Phone

Mitel 6873 SIP Phone

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List Price: $424.99

  • Manufacturer: Mitel
  • Model: 50006790
  • UPC: 50006790
  • Warranty: 1 year
  • Availability: Available to ship same business day
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Mitel 6873 SIP Phone Specifications

Feature Keys
• Up to 24 lines with 2 dedicated line keys with LED
• 48 Programmable soft keys that can be
customized over 4 pages
• 30 Context-sensitive system soft keys that can be
customized over 6 pages
• Dedicated function keys including:
»Callers List, Hold, Redial, Goodbye, Options, 
2 volume keys, Mute (with LED) and 
Speaker/Headset (with LED)
• Optional customizable hard keys for personalized
key configurations 5 alternative key caps include:
DND, CFD, Voice Mail, L3, L4
• Built in USB 2.0 Port

Audio and Codecs

• Mitel Hi-Q Audio Technology
• Hearing aid compatible (HAC) Handset
• Full-duplex quality speakerphone
• Codecs: G.711 μ-law / A-law, G.729, G.722, AMR*,
AMR-WB (G.722.2)*, G.726, iLBC, L16
• Echo cancellation
• Comfort noise utilization
• Packet loss concealment
• Voice Quality Metrics, including MOS
• USB headset support
• Embedded Bluetooth 4.0 for headset support

Display and Indicators

• 7” 800x480 pixel color Touch backlit LCD display
• Intuitive graphical user interface and navigation menus
• Touch QWERTY/AZERTY keyboard
• Adjustable screen brightness for user comfort in different lighting environments
• Dedicated LED for call and message waiting indication (MWI) Security
• User administrator level passwords for login
• Brute force detection
• Encryption of configuration files
• HTTPS configuration downloaded and web management
• Phone lock with PIN
• Digest Authentication
• Transport Layer Security (TLS)
• Secure Real-Time Protocol (SRTP)

XML API Capabilities

• Display control based on user actions or events
• Dynamic Phone Configuration
• RTP Streaming Control
• Extensive XML documentation and sample apps


• Multilingual support – English, French, Spanish,
Italian, German, Nordic, Russian, Portuguese, Greek
»Downloadable language pack support for customization and additional language translations
• Country-specific call progress tones and
• Unicode UTF8 Character sets
• IETF SIP (RFC3261) and associated RFCs
• Extensive SIP standards compliance
• PoE Class 3 (Dynamic switching to Class 4 with
expansion modules). IEEE 802.af and 802.at
• Level “VI” energy efficiency rated power  adapters available
Networking and Provisioning
• Dual 10/100/1000 Mbps Ethernet ports (LAN/PC)
• Manual or Dynamic Host Configuration Protocol
(DHCP) IP address setup Support of multiple
DHCP options: 2,12,42,43,60,66,77,120,132,159,160
• Time and date synchronization using SNTP
• Quality of Service support – IEEE 802.1 p/Q VLAN and priority tagging, Type of Service (TOS), and Differentiated Services Code Point
• Network Address Translation (NAT) support
• Integrated HTTP/HTTPS server for web administration and maintenance including  a built-in troubleshooting section
• Mass deployment via central provisioning of user
configuration files: TFTP, FTP, HTTP, HTTPS
• TR-069 support
• Mitel redirection and configuration service
support (zero touch deployment)
• Redundant server support
»Backup proxy/registrar server support
• RTCP support (RFC1889)
• RTP streaming for Paging and Intercom applications
• IEEE 802.1x

Package Contents

• Mitel 6873 SIP Phone (50006790)
• Handset and coil cord
• Adjustable 2-angle stand (30° & 60°)


• M685 LCD Expansion Module
• M680 Paper Expansion Module

Operating conditions

• Temperature: 0 to 40°C (+32 to 104°F)
• Relative Humidity: 5% to 95%, Noncondensing
Storage temperature
• -40 to +70° C (-40 to +160° F)

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