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Mitel (Aastra) 6863i 2 Line VoIP Phone

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06/12/2021 £55.00 exc. VAT
66.00 inc. VAT
Availability:In stock for next day delivery
Key Features
  • 2 Line appearances
  • Support for G.722 HD Voice
  • 2.75" (128x48) monochrome display

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Mitel (Aastra) 6863i 2 Line VoIP Phone

The Mitel (Aastra) 6863i is a 2 line HD voice entry level VoIP phone in the Aastra 6800 series of powerful and modern phones. Designed with professional workers in mind the 6863i features a 2.75” monochrome pixel display, 3 programmable keys and Dual 10/100 RJ45 ports.

Mitel (Aastra) 6863i Features and Functions:

  • 2 Line appearances
  • Support for G.722 HD Voice
  • 2.75" (128x48) monochrome display
  • Dual 10/100 RJ45 Ports
  • Power over Ethernet
  • Optional power supply not included

Mitel (Aastra) 6863i 2 Line VoIP Phone Overview

The Mitel (Aastra) 6863i features Aastra's Hi-Q audio technology for enhanced voice clarity on an HD handset. Advanced audio processing and hardware components support a true wideband frequency range so that regardless of whether you take your calls on a handset or speakerphone, your conversation will be crystal clear and life-like.

With extensive storage capacity for personal directories, callers logs, redial lists, and 3 programmable keys the Mitel (Aastra) 6863i can improve efficiency by providing more call information with the push of a button. With dedicated hard keys including: Transfer,Callers List, Hold, Redial, Goodbye, Options, 2 volume keys, Mute(with LED) and Speaker (with LED) as well as a 4-way navigation with Select/OK key, the 6863i is easy to use and efficient for your everyday telephone use.

Mitel (Aastra) 6863i IP Phone Technical Specifications
  • Up to 2 lines ON dedicated line keys with LED
  • 3 Programmable keys
  • 4-way navigation key with Select/OK button
  • Dedicated function keys including:
    Transfer, Callers List, Hold,
    Redial, Goodbye, Options, 2 volume
    keys, Mute (with LED) and Speaker
    (with LED)

Audio and Codecs

  • Aastra Hi-Q™ Audio Technology
  • Hearing aid compatible (HAC) handset
  • Full-duplex quality speakerphone
  • Wideband handset and speakerphone
  • Codecs: G.711 µ-law / A-law, G.729,
    G.722, AMR*, AMR-WB(G.722.2)*, G.726,
    iLBC, BV16, BV32, L16
  • Echo cancellation
  • Comfort noise utilization
  • Packet loss concealment
  • Voice Quality Metrics, including MOS
  • Headset Mode support

Display and Indicators

  • Monochrome LCD
  • 2.75" 128x48 pixel graphical display
  • LED for call and message waiting indication


  • User and administrator level passwords for login
  • 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
  • CTI applications
  • Extensive XML documentation and sample Apps

Networking and Provisioning

  • Dual 10/100 Mbps Ethernet ports with hardware based Ethernet switch
  • 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)Time and date synchronization using SNTP
  • Network Address Translation (NAT), STUN, TURN support
  • Integrated HTTP/HTTPS server for web administration
  • Mass deployment
  • TR-069 support
  • Redundant server support
    • DNS-SRV
    • Backup proxy/registrar server support
  • RTCP support (RFC1889)
  • RTP streaming for Paging and Intercom applications
  • IEEE 802.1x

Expansion Modules

  • Up to three Expansion Modules supported


  • PoE Class 1
  • Level "V" energy efficiency rated power adapters available
    • 87-00012AAA-A (Europe)
    • 87-00013AAA-A (North America)
    • D6700-0131-48-20 (Universal)

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