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Aastra Voice Over IP Phones Voice Over IP Phones
Sort by: 1 - 8 of 8 results
Aastra Voice Over IP Phones 53i

Aastra 53i
Includes One Year Manufacturer's Warranty

Item #A1753-0131-10-05
  • Corded Voice Over IP Phone
  • Voice Over Internet Protocol (VoIP)
  • Session Initiation Protocol (SIP)
  • Up to 9 Call Appearance Lines
  • Caller ID / Call Waiting
  • Digital Duplex Speakerphone
  • 3-Line LCD Display
  • Built-In HTTP Server

**Requires A Broadband Internet Connection & Does Not Operate On A Regular (Analog) Phone Line**
$154.99

Aastra Voice Over IP Phones 53i
Aastra Voice Over IP Phones 55i

Aastra 55i
Includes One Year Manufacturer's Warranty

Item #A1755-0131-10-05
  • Corded Voice Over IP Phone
  • Voice Over Internet Protocol (VoIP)
  • Session Initiation Protocol (SIP)
  • Up to 9 Call Appearance Lines
  • Caller ID / Call Waiting
  • Digital Duplex Speakerphone
  • 144x75 Graphical LCD Display
  • Built-In HTTP Server


**Requires A Broadband Internet Connection & Does Not Operate On A Regular (Analog) Phone Line**
$194.99

Aastra Voice Over IP Phones 55i
Aastra Voice Over IP Phones 57i

Aastra 57i
Includes One Year Manufacturer's Warranty

National Backorder
Late May Delivery
Item #A1757-0131-10-05
  • Corded Voice Over IP Phone
  • Voice Over Internet Protocol (VoIP)
  • Session Initiation Protocol (SIP)
  • Up to 9 Call Appearance Lines
  • Caller ID / Call Waiting
  • Digital Duplex Speakerphone
  • 144x128 Graphical LCD Display
  • Built-In HTTP Server

**Requires A Broadband Internet Connection & Does Not Operate On A Regular (Analog) Phone Line**
$214.99

Aastra Voice Over IP Phones 57i
Aastra Voice Over IP Phones 57i CT

Aastra 57i CT
Includes One Year Manufacturer's Warranty

Item #A1758-0131-10-05
  • 2.4GHz Extra Handset / Charger
  • Corded / Cordless Voice Over IP Phone
  • Up To 300,000ft Range
  • Voice Over Internet Protocol (VoIP)
  • Session Initiation Protocol (SIP)
  • Up to 9 Call Appearance Lines
  • Caller ID / Call Waiting
  • Digital Duplex Speakerphone
  • 144x128 Graphical LCD Display
  • Built-In HTTP Server

Aastra 57i CT Includes:
  • 1 Base / Corded Handset
  • 1 Extra Handset / Charger

**Requires A Broadband Internet Connection & Does Not Operate On A Regular (Analog) Phone Line**
$329.99

Aastra Voice Over IP Phones 57i CT