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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
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)
Part Numbers
- A1755-0131-10-05 – North America (120V power adapter)
- A1755-0131-10-55 – International (Universal power adapter)
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
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