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Aastra 6757i (57i) Refurbished

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Aastra 6757i IP Telephone
MSRP: $379.99
Price: $142.58
Call or send form below for volume discount
Store #: 2718-R
Manufacturer: Aastra
Manufacturer Part No: A1757-0131-10-01

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Need help with this purchase? Call 888-976-7443
1-year warranty

Aastra 6757i (57i) - Power supply not included

Aastra 57i - Features *

  • Up to 9 call appearance lines 
  • Shared Call and Bridged Line Appearances
  • Multi-proxy support
  • XML browser
  • Local 3-way conference
  • Digiums Asterisk Business Edition supports Busy Lamp Field (BLF), Intercom
  • BroadSofts BroadWorks enhanced SIP supports Shared Call Appearances, Busy Lamp Field (BLF), CommPilot Call Manager
  • Nortels MCS 5100/5200 SIP supports Conferencing, Voicemail, and NAT Traversal
  • Sylantros SIP supports Bridged Line Appearances (BLA), ComCierge, Call Park/Pickup, Conference

* Feature availability dependant on IP telephony systems

Aastra 57i - Overview

XML Browser

The Aastra 57i is equipped with XML browser capabilities and an extra large display with dynamic soft keys to easily access customized services and applications. Create internal service applications using development guides available from Aastra. This feature provides unlimited potential to customize the 57i to meet your specific business needs or vertical applications using the display and keypad.

Enhanced Call Management

With extensive storage capacity for personal directories, callers logs and redial lists and 12 programmable keys, the Aastra 57i can improve efficiency by providing more call information with the push of a button. Features such as shared call and bridged line appearances, call forward, call transfer, call waiting, intercom and local 3-way conference increase call flexibility and control.


The Aastra 57i offers two different module extension options. It supports up to three Aastra 536M modules, each offering 36 keys with LED indicators to create a feature rich attendant console. Or, it will also support up to three of the advanced Aastra 560M modules, each offering 60 keys with a screen based LCD display and LED system.

Remarkable Audio

All Aastra IP telephones offer full-duplex speakerphone with excellent voice clarity and delivery. With years of experience in telecommunications and telephone design, Aastra can ensure superior voice quality on every product we sell.

Simplified Deployment

From initial deployment and configuration to future enhancements and upgrades, the Aastra family of IP telephones are designed to save your business time and money. Dual auto-sensing switched Ethernet ports eliminate additional wiring and simplify installations. Integrated IEEE 802.3af Power-over-Ethernet allows easy deployment with centralized powering and backup. Easily created configuration files, using any text editor, can be used to configure phones individually or centrally.

Aastra 6757i (57i) Specifications

  23.5 cm W x 20.8 cm D x 8.0 cm H (9.3W x 8.2D x 3.2H)
 940 g (33.0 oz)
  4 positions foot stand
  Wall mountable


  AC wall adapter included
  Integrated IEEE 802.3af Power Over Ethernet (PoE) support


  Hearing aid compatible (HAC) handset
  Full-duplex quality speakerphone
  Modular headset connector with built-in amplifier - Non-amplified business headsets are recommended

Display and Indicator

  144x128 pixels graphical LCD display - Soft white backlight for user comfort in any lighting environment, Configurable for Always On, Always Off, or Auto (power saving)
  LED for call and message waiting indicator

Feature Keys

  4 call appearance lines with LEDs
  4 navigational keys
  12 customizable soft keys with LEDs, programmable up to 30 functions
  8 predefined hard keys; Goodbye, Options, Hold, Redial, Speakerphone/Headset toggle, Mute, 2 volume keys


  Visit for an up to date listing of approved vendor/interoperability

Expansion Module

  Aastra 536M 36-keys paper label module with LEDs - Scalable up to 3 modules or 108 keys, No additional external power required; direct power from phone
  Aastra 560M 60-keys LCD module with LEDs - Scalable up to 3 modules or 180 keys. No additional external power required; direct power from phone


  Multi-lingual support English, French, Spanish, Italian, German - Downloadable language pack support for customization and additional language translations
  Country-specific call progress tones and cadences


  Dual 10/100 Mbps switched Ethernet ports
  Manual or Dynamic Host Configuration Protocol (DHCP) IP address setup
  Time and date synchronization using SNTP
  Quality of Service (QOS) support IEEE 802.1 p/Q VLAN and priority tagging, Type of Services (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
  Redundant server support, DNS-SRV, Local backup registrar and/or proxy server

Protocols / Codecs

  IETF SIP (RFC3261 and associated RFCs)
  G.711 -law / A-law


  User and administrator level passwords
  Encryption of configuration files
  HTTPS configuration download and web management
  Phone lock with PIN

Package Contents

57i Base
  Aastra 57i IP telephone
  Handset and coil cord
  2x Foot stand
  AC wall adapter for base phone
  Network cable
  Installation Guide
 Wall mount kit

Part Numbers

  A1757-0131-10-05 North America (120V power adapter)
  A1757-0131-10-55 International (Universal power adapter)


  ROHS compliant
  WEEE (2002/96/EC)
  CE Mark (89/336/EEC EMC Directive and
  73/23/EEC Low Voltage Directive)
  FCC Part 15 Class B
  ICES-003 Class B
  VCCI Class B
  AS/NZS 3548 Class B
  EN55022 Class B
  CISPR22 Class B
  EN61000-4-2, 4-3, 4-4, 4-5, 4-6, 4-8, 4-11
  CAN/CSA C22.2 No. 60950
  EN 60950
  UL 60950-1
  FCC Part 68 (Hearing Aid Compatibility)
  AS/NZS S004
  FCC Part 15 Class C
  EN 300-328
  EN 301 489
  AS/NZS 4771


  Aastra 536M 36-keys paper label expansion module - A1736-0000-10-55 (Universal)
  Aastra 560M 60-keys LCD expansion module - A1760-0000-10-55 (Universal)
 Optional mid span Power Over Ethernet
 (POE) injector available, but not provided for networks that do not supply power, D0023-0031-00-00 (North America) or D0023-0031-PS-00 (International)


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