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)
940 g (33.0 oz)
4 positions footstand
Wall mountable
Power
AC wall adapter included
Integrated IEEE 802.3af Power Over
Ethernet (PoE) 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
144x75 pixels graphical LCD display
Soft white backlight for user comfort
in any lighting environment
Configurable for Always On, Always
Off, or Auto (power saving)
LED for call and message waiting
indicator
Feature Keys
4 call appearance lines with LEDs
4 navigational keys
6 customizable softkeys with LEDs,
programmable up to 20 functions
6 programmable keys with LEDs
8 predefined hard keys
Goodbye
Options
Hold
Redial
Speakerphone/Headset toggle
Mute
2 volume keys
Security
User and administrator level passwords
Encryption of configuration files
HTTPS configuration download and
web management
Phone lock with PIN
Interoperability
Visit www.aastratelecom.com/IPphones
for an up to date listing of approved
vendor/interoperability
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Expansion Module
Aastra 536M – 36-keys paper label
module with LEDs
Scalable up to 3 modules or 108 keys
No additional external power
required; direct power from phone
Localization
Multi-lingual support – English, French,
Spanish, Italian, German
Downloadable language pack
support for customization and
additional language translations
Country-specific call progress tones and
cadences
Protocols / Codecs
IETF SIP (RFC3261 and associated RFCs)
G.711 μ-law / A-law
G.729
Networking
Dual 10/100 Mbps switched Ethernet
ports
Manual or Dynamic Host Configuration
Protocol (DHCP) IP address setup
Time and date synchronization using
SNTP
Quality of Service (QOS) support
– IEEE 802.1 p/Q VLAN and priority
tagging, Type of Services (TOS), and
Differentiated Services Code Point
Network Address Translation (NAT)
support
Integrated HTTP/HTTPS server for
web administration and maintenance
including a built-in troubleshooting
section
Mass deployment via central
provisioning of user configuration files
– TFTP, FTP, HTTP, HTTPS
Redundant server support
DNS-SRV
Local backup registrar and/or proxy
server
Accessories
Aastra 536M – 36-keys paper label
expansion module
A1736-0000-10-55 (Universal)
Optional midspan Power Over Ethernet
(POE) injector available, but not
provided, for networks that do not
supply power
D0023-0031-00-00 (North America)
D0023-0031-PS-00 (International)
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Package Contents
Aastra 55i IP telephone
Handset and coil cord
2x Footstand
AC wall adapter
Network cable
Programmable keys label
Installation Guide
Wall mount kit
Regulatory
CE
ROHS compliant
WEEE (2002/96/EC)
CE Mark (89/336/EEC EMC Directive and
73/23/EEC Low Voltage Directive)
EMC
FCC Part 15 Class B
ICES-003 Class B
VCCI Class B
AS/NZS 3548 Class B
EN55022 Class B
CISPR22 Class B
EN55024
EN61000-4-2, 4-3, 4-4, 4-5, 4-6, 4-8, 4-11
Safety
CAN/CSA C22.2 No. 60950
EN 60950
UL 60950-1
Telecom
FCC Part 68 (Hearing Aid Compatibility)
AS/NZS S004
RF
FCC Part 15 Class C
EN 300-328
EN 301 489
AS/NZS 4771
Part Numbers
A1755-0131-10-05 – North America (120V
power adapter)
A1755-0131-10-55 – International
(Universal power adapter)
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Aastra 55i Technical Specifications
www.aastratelecom.com
Rev 03/07
PMS 293C
PMS 298C
COPYRIGHT (C) 2007 AASTRA TECHNOLOGIES LTD. ALL RIGHTS RESERVED. INFORMATION IN THIS DOCUMENT IS SUBJECT
TO CHANGE WITHOUT NOTICE. AASTRA TELECOM ASSUMES NO RESPONSIBILITY FOR ANY ERRORS THAT MAY APPEAR
IN THIS DOCUMENT. PRODUCT CAPABILITIES DESCRIBED IN THIS DOCUMENT PERTAIN SOLELY TO AASTRA TELECOM’S
MARKETING ACTIVITIES IN THE U.S AND CANADA. AVAILABILITY IN OTHER MARKETS MAY VARY.
AASTRA TELECOM
155 SNOW BLVD.,
CONCORD, ONTARIO, CANADA, L4K 4N9
SALES@AASTRA.COM • WWW.AASTRATELECOM.COM
