Aastra 675xi Series

ModelDescriptionProductCompatible with
55i
  • Advanced Featured—Expandable VoIP Telephone
  • 9 Call Appearance Lights with Shared Call and Bridge Line Appearances
  • Expandable—Supports up to 3 M536 Expansion Modules
  • Multi-Proxy Support
  • Distinctive Ringing and Priority Alerting
  • Embedded XML Browser
  • 144x75 Pixels Graphical LCD Display
  • Soft White Backlighting
  • Full Duplex Speakerphone
55i
WTC Hosted Phone System
57i
  • Advanced Fully Featured—Expandable VoIP Telephone
  • 9 Call Appearance Lights with Shared Call and Bridge Line Appearances
  • Expandable—Supports up to 3 M536 or M560 Expansion Modules
  • Multi-Proxy Support
  • Distinctive Ringing and Priority Alerting
  • Embedded XML Browser
  • 144x128 Pixels Graphical LCD Display
  • Soft White Backlighting
  • Full Duplex Speakerphone
57i
WTC Hosted Phone System
57i CT
  • Advanced Fully Featured—Expandable VoIP Telephone with Cordless Handset
  • Each 57i CT comes with a corded 57i base station and 1 cordless handset
  • 9 Call Appearance Lights with Shared Call and Bridge Line Appearances
  • Expandable—Supports up to 3 M536 or M560 Expansion Modules
  • Multi-Proxy Support
  • Distinctive Ringing and Priority Alerting
  • Embedded XML Browser
  • 144x128 Pixels Graphical LCD Display with Soft White Backlighting
  • Full Duplex Speakerphone
57i CT
WTC Hosted Phone System
M670i
  • Aastra 5i Series Expansion Module
  • 36 Keys with LED
  • Paper Strip Labeling
  • Supported on 55i, 57i and 57i CT (up to 3 units)
M670i
WTC Hosted Phone System
M675i
  • Aastra 5i Series Expansion Module
  • 60 Keys with LED (3 pages with 20 on each page)
  • Self-Labeling LCD Backlit Display
  • Supported on 57i and 57i CT (up to 3 units)
M675i
WTC Hosted Phone System

AdTran IP Phone 700 Series

DescriptionCompatible with
  • Large graphical backlit display
  • Visual ringing alert/message waiting indicator
  • Integrated headset jack with on/off button/indicator
  • Web-based user-configurable personal contact directory
  • Distinctive incoming call treatment/call waiting
  • Supports multiple call appearances
  • Three-way conferencing
  • Hands-free auto-answer intercom
  • High-quality full-duplex speaker phone
AdTran NetVanta Phone System