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6757i Char SIP incl. universal adapter

SIP, 10/100 switch, PoE, graphical LCD, 12 soft keys, XML, HQ audio, 9 lines
Product SKU : A1757-0131-10-55
From Stock

The 6757i offers powerful features and flexibility in a standards based, carriergrade advanced level expandable IP telephone. With a sleek and elegant design, large 144 x 128 pixel graphical backlit LCD display and 6 dynamic context-sensitive softkeys, the 57i is fully interoperable with leading IP Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously. Part of the Aastra 5i Series of IP telephones, the 57i is ideally suited for executives and heavy telephone users who require more one touch feature keys and a large screen to take full advantage of XML based programs.


  • 144x128 pixels graphical LCD display
  • 9 line / SIP account support
  • 4 call appearance lines with LEDs
  • 4 navigational keys
  • 12 customizable softkeys with LEDs, programmable up to 30 functions
  • 8 predefined hard keys: Goodbye, Options, Hold, Redial, Speakerphone/Headset toggle, Mute, 2 volume keys
  • Accessories: 230V network adaptor
  • XML browser capability to access custom applications
  • LED for call and message waiting indicator
  • Dual 10/100 Mbps switched Ethernet ports
  • Power Over Ethernet support
  • Full-duplex quality speakerphone 
  • DHSG support
  • Expansion module support (M670i, M675i)

Supported systems:

  • Asterisk and Asterisk Appliance systems (Digium, Elastix, Xorcom, Yeastar, Grandstream, etc.)
  • 3CX
  • VoIP Provider Lines
  • IP Centrex (Deverto, Broadsoft, etc.)
  • Aastra BusinessPhone
  • Aastra MX-ONE Telephony Server

Package content:

  • 1 pc Aastra IP phone
  • 1 pc Ethernet cable
  • 1 pc CD-ROM
  • 1 pc AC adapter

Orderable accessories:

  • High Angle Stand
  • M670i expansion module
  • M675i expansion module
  • Handset
  • Handset cord
  • DHSG cabel set


Address:  H-1142 Budapest, Rákos tér 34. Hungary


Phone: +36 1 801 8500


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