Both modules are directly powered
from the phone and can be used with
selected 67xi Series models. Up to 3
modules can be joined together with a
single telephone. Additional keys support
programmable features such as: Line,
Speed Dial, Busy Lamp Field (maximum
of 50 BLF per phone), Bridged Line
Appearance, Shared Call Appearance and
Do not Disturb.
Aastra M670i
LED for status indication
36 programmable keys for
programmable features
Compatible with Aastra 6753i, 6755i,
6757i, 6757i CT and 6739i models
Aastra M675i
LED for status indication
20 softkeys available on 3 screens (60
keys)
144x128 pixels graphical LCD display
•
Soft white backlight for user comfort
in any lighting environment
• Congurable for Always On, Always
O, or Auto (power saving)
Compatible with Aastra 6755i, 6757i,
6757i CT and 6739i models
M670i and M675i Expansion Modules
Up to 9 lines with call appearances
Shared call and bridged line
appearances
Multi-proxy support
Distinctive ringing, priority alerting
144x128 pixels graphical LCD display
LED for call and message waiting
indicator
Personal directory
Call forward/Call transfer/Call waiting
Caller and calling line information
Callers log
Local 3-way conference
Intercom with auto-answer
Do Not Disturb
4 call appearance lines with LEDs
4 navigational keys
12 customizable softkeys with LEDs;
programmable up to 30 functions
8 predened hard keys
Supports up to 3 M670i or M675i
modules
Aastra Hi-Q™ Audio Technology
Aastra 6757i
Up to 9 lines with call appearances
Shared call and bridged line
appearances
Multi-proxy support
Distinctive ringing, priority alerting
144x128 pixels graphical LCD display
LED for call and message waiting
indicator
Call forward/Call transfer/Call waiting
Caller and calling line information
8 predened hard keys
Supports up to 3 M670i or M675i
modules
Aastra Hi-Q™ Audio Technology
Additional Handset Features:
AC wall adapter for charging stand
Nickel Metal Hydride battery – 4 day
standby time, 4 hour talktime
One handset included; expandable up
to 4 handsets
2.4 GHz Frequency Hopped Spread
Spectrum (FHSS)
Up to 300,000 sq. feet coverage
Vibration alerter
2.5mm headset connector
Large 5 lines backlit display
LED for call and message waiting
indicator
2 context-sensitive softkeys
8 predened hard keys
Programmable function key
supports up to 20 functions for tight
integration with the 6757i CT base
features
Aastra 6757i CT
6
(8 pages)
(16 pages)
(41 pages)
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