The Aastra 53i offers powerful features and flexibility in a standards based, carrier-grade basic level IP telephone. With a sleek and elegant design and 3 line LCD display, the 53i is fully interoperable with leading IP Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously.
Part of the Aastra Premium Series of IP telephones, the Aastra 53i is the ideal IP Phone for business users who receive and originate typical levels of telephone calls. 536M Expansion Modules can be added for higher call coverage.
Up to 9 call appearance lines
Shared Call and Bridged Line Appearances
Multi-proxy support
Distinctive ringing, priority alerting
XML browser
Personal directory
Call forward/Call transfer/Call waiting
Caller and calling line information
Callers log
Local 3-way conference
Intercom with auto-answer
Redial list
Do Not Disturb
Live dial pad or pre-dial support
Audio
~ 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
~ 3 line LCD display
~ LED for call and message waiting indicator Power
~ AC wall adapter included
~ Integrated IEEE 802.3af Power Over Ethernet (PoE) support Physical
~ 23.5 cm W x 20.8 cm D x 8.0 cm H (9.3”W x 8.2”D x 3.2”H)
~ 895 g (31.3 oz)
~ 4 adjustable footstand positions
~ Wall mountable Expansion Module
~ Aastra 536M – 36-keys paper label module with LEDs
~ Scalable up to 3 modules per 53i for a total of 108 extra softkeys/LEDS
~ No additional external power required; direct power from phone
