Phone Hardware

Aastra 675xi Series

Model	Description	Product	Compatible 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		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		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		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)		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)		WTC Hosted Phone System

AdTran IP Phone 700 Series