Aastra 6755i (55i)
Aastra 6755i - Features*
- Up to 9 call appearance lines
- Shared Call and Bridged Line Appearances
- Multi-proxy support
- XML browser
- Local 3-way conference
- Digiums Asterisk Business Edition supports Busy Lamp Field (BLF), Intercom
- BroadSofts BroadWorks enhanced SIP supports Shared Call Appearances, Busy Lamp Field (BLF), CommPilot Call Manager
- Nortels MCS 5100/5200 SIP supports Conferencing, Voicemail, and NAT Traversal
- Sylantros SIP supports Bridged Line Appearances (BLA), Comierge, Call Park/Pickup, Conference
* Feature availability dependant on IP telephony systems
Aastra 55i - Overview
The Aastra 55i is equipped with XML browser capabilities and a large display with dynamic soft keys to easily access customized services and applications. Create internal service applications using development guides available from Aastra. This feature provides unlimited potential to customize the 55i to meet your specific business needs or vertical applications using the display and keypad.
Enhanced Call Management
With extensive storage capacity for personal directories, callers logs and redial lists and 12 programmable keys, the Aastra 55i can improve efficiency by providing more call information with the push of a button. Features such as shared call and bridged line appearances, call forward, call transfer, call waiting, intercom and local 3-way conference increase call flexibility and control.
The Aastra 55i supports up to three Aastra 536M modules, each offering 36 keys with LED indicators to create a feature rich attendant console.
All Aastra IP telephones offer full-duplex speakerphone with excellent voice clarity and delivery. With years of experience in telecommunications and telephone design, Aastra can ensure superior voice quality on every product we sell.
From initial deployment and configuration to future enhancements and upgrades, the Aastra family of IP telephones are designed to save your business time and money. Dual auto-sensing switched Ethernet ports eliminate additional wiring and simplify installations. Integrated IEEE 802.3af Power-over-Ethernet allows easy deployment with centralized powering and backup. Easily created configuration files, using any text editor, can be used to configure phones individually or centrally.
Aastra 6755i (55i) Specifications
23.5 cm W x 20.8 cm D x 8.0 cm H (9.3W x 8.2D x 3.2H)
940 g (33.0 oz)
4 positions foot stand
AC wall adapter included
Integrated IEEE 802.3af Power Over Ethernet (PoE) support
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
4 call appearance lines with LEDs
4 navigational keys
6 customizable soft keys 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
User and administrator level passwords
Encryption of configuration files
HTTPS configuration download and web management
Phone lock with PIN
Visit www.aastratelecom.com/IPphones for an up to date listing of approved vendor/interoperability
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
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 -law / A-law
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
Aastra 536M 36-keys paper label expansion module
Optional mid span 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)
Aastra 55i IP telephone
Handset and coil cord
2x Foot stand
AC wall adapter
Programmable keys label
Wall mount kit
CE Mark (89/336/EEC EMC Directive and 73/23/EEC Low Voltage Directive)
FCC Part 15 Class B
ICES-003 Class B
VCCI Class B
AS/NZS 3548 Class B
EN55022 Class B
CISPR22 Class B
EN61000-4-2, 4-3, 4-4, 4-5, 4-6, 4-8, 4-11
CAN/CSA C22.2 No. 60950
FCC Part 68 (Hearing Aid Compatibility)
FCC Part 15 Class C
EN 301 489
A1755-0131-10-05 North America (120V power adapter)
A1755-0131-10-55 International (Universal power adapter)
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